January |
| 1 | 4-8 Jan | ITF World Tennis Tour (Juniors) | Marin Postponed | SUI | J5 | | | | |
| 1 | 5-10 Jan | ITF World Tennis Tour (Juniors) | Frankfurt | GER | J5 | EL, Results | | | |
| 1 | 6-10 Jan | ITF World Tennis Tour (Juniors) | Bratislava Postponed | SVK | J4 | | | | |
| 2 | 11-16 Jan | ITF World Tennis Tour (Juniors) | Belgrade | SRB | J4 | EL, Results | | | |
| 2 | 11-17 Jan | ITF World Tennis Tour (Juniors) | Balashiha | RUS | J5 | EL, Results | | | |
| 2 | 11-17 Jan | ITF World Tennis Tour (Juniors) | Oberpullendorf Postponed | AUT | J4 | | | | |
| 2 | 11-17 Jan | ITF World Tennis Tour (Juniors) | Prague Postponed | CZE | J1 | | | | |
| 2 | 12-16 Jan | ITF World Tennis Tour (Juniors) | Ramat Ha Sharon | ISR | J4 | EL, Results | | | |
| 2 | 13-17 Jan | ITF World Tennis Tour (Juniors) | Offenbach | GER | J5 | EL, Results | | | |
| 3 | 18-22 Jan | ITF World Tennis Tour (Juniors) | Antalya | TUR | J3 | EL, Results | | | |
| 3 | 18-23 Jan | ITF World Tennis Tour (Juniors) | Heiveld Postponed | BEL | J1 | | | | |
| 3 | 18-23 Jan | ITF World Tennis Tour (Juniors) | Svyatopetrivske village | UKR | J1 | EL, Results | | | |
| 3 | 18-24 Jan | ITF World Tennis Tour (Juniors) | Siroki Brijeg Postponed | BIH | J5 | | | | |
| 3 | 19-23 Jan | ITF World Tennis Tour (Juniors) | Ramat Ha Sharon | ISR | J4 | EL, Results | | | |
| 3 | 20-24 Jan | ITF World Tennis Tour (Juniors) | Loughborough (CLOSED) Postponed | GBR | J5 | | | | |
| 3 | 20-24 Jan | ITF World Tennis Tour (Juniors) | Prague Postponed | CZE | J4 | | | | |
| 4 | 25-30 Jan | ITF World Tennis Tour (Juniors) | Siroki Brijeg Postponed | BIH | J5 | | | | |
| 4 | 25-31 Jan | ITF World Tennis Tour (Juniors) | Maribor Postponed | SLO | J5 | | | | |
| 4 | 26-31 Jan | ITF World Tennis Tour (Juniors) | Puszczykowo Postponed | POL | J5 | | | | |
February |
| 5 | 1-7 Feb | ITF World Tennis Tour (Juniors) | Chisinau Postponed | MDA | J2 | | | | |
| 5 | 2-7 Feb | ITF World Tennis Tour (Juniors) | Szczecin Postponed | POL | J4 | | | | |
| 6 | 8-12 Feb | ITF World Tennis Tour (Juniors) | Oberhaching Postponed | GER | J3 | | | | |
| 6 | 8-13 Feb | ITF World Tennis Tour (Juniors) | Manacor | ESP | J3 | EL, Results | | | |
| 6 | 8-13 Feb | ITF World Tennis Tour (Juniors) | Minsk Postponed | BLR | J5 | | | | |
| 6 | 8-14 Feb | ITF World Tennis Tour (Juniors) | Antalya | TUR | J4 | EL, Results | | | |
| 7 | 15-20 Feb | ITF World Tennis Tour (Juniors) | Antalya | TUR | J4 | EL, Results | | | |
| 7 | 15-20 Feb | ITF World Tennis Tour (Juniors) | The Hague Postponed | NED | J5 | | | | |
| 7 | 16-21 Feb | ITF World Tennis Tour (Juniors) | Maribor Postponed | SLO | J5 | | | | |
| 7 | 16-21 Feb | ITF World Tennis Tour (Juniors) | Nastola Postponed | FIN | J4 | | | | |
| 8 | 22-27 Feb | ITF World Tennis Tour (Juniors) | Esch-Alzette Postponed | LUX | J4 | | | | |
| 8 | 22-27 Feb | ITF World Tennis Tour (Juniors) | Oslo Cancelled | NOR | J4 | | | | |
| 8 | 22-27 Feb | ITF World Tennis Tour (Juniors) | Tartu | EST | J5 | EL, Results | | | |
| 8 | 23-28 Feb | ITF World Tennis Tour (Juniors) | Siauliai | LTU | J2 | EL, Results | | | |
| 8 | 24-28 Feb | ITF World Tennis Tour (Juniors) | Doorn Postponed | NED | J4 | | | | |
March |
| 9 | 1-5 Mar | ITF World Tennis Tour (Juniors) | Tallinn | EST | J5 | EL, Results | | | |
| 9 | 1-6 Mar | ITF World Tennis Tour (Juniors) | Gjovik Cancelled | NOR | J4 | | | | |
| 10 | 8-13 Mar | ITF World Tennis Tour (Juniors) | Hamburg Postponed | GER | J4 | | | | |
| 10 | 8-13 Mar | ITF World Tennis Tour (Juniors) | Kramfors Postponed | SWE | J4 | | | | |
| 10 | 9-13 Mar | ITF World Tennis Tour (Juniors) | Valencia | ESP | J2 | EL, Results | | | |
| 11 | 15-19 Mar | ITF World Tennis Tour (Juniors) | Adazi Postponed | LAT | J4 | | | | |
| 11 | 15-20 Mar | ITF World Tennis Tour (Juniors) | Colomiers Postponed | FRA | J5 | | | | |
| 11 | 15-20 Mar | ITF World Tennis Tour (Juniors) | Kramfors Postponed | SWE | J4 | | | | |
| 11 | 15-20 Mar | ITF World Tennis Tour (Juniors) | Maribor Postponed | SLO | J5 | | | | |
| 11 | 15-21 Mar | ITF World Tennis Tour (Juniors) | Kamen Postponed | GER | J3 | | | | |
| 11 | 16-20 Mar | ITF World Tennis Tour (Juniors) | Benicarlo | ESP | J2 | EL, Results | | | |
| 11 | 16-21 Mar | ITF World Tennis Tour (Juniors) | Szczecin | POL | J4 | EL, Results | | | |
| 12 | 22-26 Mar | ITF World Tennis Tour (Juniors) | Jurmala Postponed | LAT | J5 | | | | |
| 12 | 22-27 Mar | ITF World Tennis Tour (Juniors) | Blagnac Postponed | FRA | J5 | | | | |
| 12 | 22-27 Mar | ITF World Tennis Tour (Juniors) | Maribor Postponed | SLO | J4 | | | | |
|
| 12 | 22-28 Mar | ITF World Tennis Tour (Juniors) | Antalya | TUR | J4 | EL, Results | | | |
| 12 | 23-28 Mar | ITF World Tennis Tour (Juniors) | Puszczykowo | POL | J5 | EL, Results | | | |
| 12 | 23-28 Mar | ITF World Tennis Tour (Juniors) | Villena | ESP | J1 | EL, Results | | | |
| 12 | 24-28 Mar | ITF World Tennis Tour (Juniors) | Prague Postponed | CZE | J4 | | | | |
| 13 | 29 Mar-3 Apr | ITF World Tennis Tour (Juniors) | Kazan | RUS | J5 | EL, Results | | | |
| 13 | 31 Mar-4 Apr | ITF World Tennis Tour (Juniors) | Loughborough (CLOSED) Postponed | GBR | J5 | | | | |
| 13 | 31 Mar-5 Apr | ITF World Tennis Tour (Juniors) | Florence Postponed | ITA | J2 | | | | |
April |
| 14 | 5-10 Apr | ITF World Tennis Tour (Juniors) | Almetievsk | RUS | J3 | EL, Results | | | |
| 14 | 5-10 Apr | ITF World Tennis Tour (Juniors) | Cap d'Ail Postponed | FRA | J2 | | | | |
| 14 | 5-11 Apr | ITF World Tennis Tour (Juniors) | Istanbul | TUR | J3 | EL, Results | | | |
| 14 | 7-11 Apr | ITF World Tennis Tour (Juniors) | Guessing | AUT | J5 | EL, Results | | | |
| 15 | 12-17 Apr | ITF World Tennis Tour (Juniors) | Istres Cancelled | FRA | J2 | | | | |
| 15 | 12-17 Apr | ITF World Tennis Tour (Juniors) | Plovdiv | BUL | J1 | EL, Results | | | |
| 15 | 12-18 Apr | ITF World Tennis Tour (Juniors) | Istanbul | TUR | J3 | EL, Results | | | |
| 15 | 13-18 Apr | ITF World Tennis Tour (Juniors) | Kazan | RUS | J1 | EL, Results | | | |
| 15 | 14-18 Apr | ITF World Tennis Tour (Juniors) | Oslo Postponed | NOR | J5 | | | | |
| 15 | 14-18 Apr | ITF World Tennis Tour (Juniors) | Stirling Postponed | GBR | J4 | | | | |
| 16 | 19-23 Apr | ITF World Tennis Tour (Juniors) | Adazi | LAT | J4 | EL, Results | | | |
| 16 | 19-24 Apr | ITF World Tennis Tour (Juniors) | Beaulieu-sur-Mer Postponed | FRA | J1 | | | | |
| 16 | 19-24 Apr | ITF World Tennis Tour (Juniors) | Haskovo | BUL | J2 | EL, Results | | | |
| 16 | 19-24 Apr | ITF World Tennis Tour (Juniors) | Larnaca | CYP | J4 | EL, Results | | | |
| 16 | 19-25 Apr | ITF World Tennis Tour (Juniors) | Piestany Postponed | SVK | J2 | | | | |
| 16 | 19-25 Apr | ITF World Tennis Tour (Juniors) | Subotica | SRB | J5 | EL, Results | | | |
| 16 | 20-24 Apr | ITF World Tennis Tour (Juniors) | Raanana | ISR | J4 | EL, Results | | | |
| 16 | 20-25 Apr | ITF World Tennis Tour (Juniors) | Telde | ESP | J4 | EL, Results | | | |
| 17 | 26-30 Apr | ITF World Tennis Tour (Juniors) | Jurmala | LAT | J5 | EL, Results | | | |
| 17 | 26 Apr-1 May | ITF World Tennis Tour (Juniors) | Istanbul | TUR | J3 | EL, Results | | | |
| 17 | 26 Apr-2 May | ITF World Tennis Tour (Juniors) | Nis | SRB | J5 | EL, Results | | | |
| 17 | 26 Apr-2 May | ITF World Tennis Tour (Juniors) | Ricany | CZE | J1 | EL, Results | | | |
| 17 | 26 Apr-2 May | ITF World Tennis Tour (Juniors) | Salsomaggiore Postponed | ITA | J2 | | | | |
| 17 | 27 Apr-1 May | ITF World Tennis Tour (Juniors) | Ramat HaSharon | ISR | J4 | EL, Results | | | |
May |
| 18 | 3-8 May | ITF World Tennis Tour (Juniors) | Beaulieu-sur-Mer Postponed | FRA | J1 | | | | |
| 18 | 3-8 May | ITF World Tennis Tour (Juniors) | Istanbul | TUR | J4 | EL, Results | | | |
| 18 | 3-8 May | ITF World Tennis Tour (Juniors) | Oradea | ROU | J2 | EL, Results | | | |
| 18 | 3-8 May | ITF World Tennis Tour (Juniors) | Sierre | SUI | J3 | EL, Results | | | |
| 18 | 3-8 May | ITF World Tennis Tour (Juniors) | Skopje | MKD | J4 | EL, Results | | | |
| 18 | 3-9 May | ITF World Tennis Tour (Juniors) | Ryazan | RUS | J2 | EL, Results | | | |
| 18 | 4-8 May | ITF World Tennis Tour (Juniors) | Prato Postponed | ITA | J2 | | | | |
| 18 | 4-9 May | ITF World Tennis Tour (Juniors) | Nastola | FIN | J5 | EL, Results | | | |
| 18 | 5-9 May | ITF World Tennis Tour (Juniors) | Oberpullendorf | AUT | J2 | EL, Results | | | |
| 19 | 10-15 May | ITF World Tennis Tour (Juniors) | Limassol | CYP | J4 | EL, Results | | | |
| 19 | 10-15 May | ITF World Tennis Tour (Juniors) | Santa Croce Sull-Arno Postponed | ITA | J1 | | | | |
| 19 | 10-15 May | ITF World Tennis Tour (Juniors) | Ventspils | LAT | J4 | EL, Results | | | |
| 19 | 11-15 May | ITF World Tennis Tour (Juniors) | Tribuswinkel | AUT | J2 | EL, Results | | | |
| 19 | 11-16 May | ITF World Tennis Tour (Juniors) | Nastola | FIN | J5 | EL, Results | | | |
| 19 | 11-16 May | ITF World Tennis Tour (Juniors) | Skopje | MKD | J5 | EL, Results | | | |
| 19 | 12-16 May | ITF World Tennis Tour (Juniors) | Budapest | HUN | J4 | EL, Results | | | |
| 20 | 17-22 May | ITF World Tennis Tour (Juniors) | Istanbul | TUR | J4 | EL, Results | | | |
| 20 | 17-22 May | ITF World Tennis Tour (Juniors) | Limassol | CYP | J4 | EL, Results | | | |
| 20 | 17-22 May | ITF World Tennis Tour (Juniors) | Tallinn | EST | J3 | EL, Results | | | |
|
| 20 | 17-22 May | ITF World Tennis Tour (Juniors) | Tirana | ALB | J5 | EL, Results | | | |
| 20 | 17-22 May | ITF World Tennis Tour (Juniors) | Ulcinj | MNE | J4 | EL, Results | | | |
| 20 | 17-23 May | ITF World Tennis Tour (Juniors) | Milan Postponed | ITA | JA | | | | |
| 20 | 18-23 May | ITF World Tennis Tour (Juniors) | Jönköping Postponed | SWE | J5 | | | | |
| 20 | 18-23 May | ITF World Tennis Tour (Juniors) | Lousada | POR | J3 | EL, Results | | | |
| 20 | 19-23 May | ITF World Tennis Tour (Juniors) | Dunakeszi | HUN | J4 | EL, Results | | | |
| 20 | 19-23 May | ITF World Tennis Tour (Juniors) | Stirling (CLOSED) | GBR | J5 | EL, Results | | | |
| 21 | 24-28 May | ITF World Tennis Tour (Juniors) | Cakovec | CRO | J3 | EL, Results | | | |
| 21 | 24-28 May | ITF World Tennis Tour (Juniors) | Wrexham | GBR | J5 | EL, Results | | | |
| 21 | 24-29 May | ITF World Tennis Tour (Juniors) | Charleroi-Marcinelle Postponed | BEL | J1 | | | | |
| 21 | 24-29 May | ITF World Tennis Tour (Juniors) | Hannover | GER | J3 | EL, Results | | | |
| 21 | 24-29 May | ITF World Tennis Tour (Juniors) | Podgorica | MNE | J4 | EL, Results | | | |
| 21 | 24-29 May | ITF World Tennis Tour (Juniors) | Tbilisi | GEO | J5 | EL, Results | | | |
| 21 | 24-30 May | ITF World Tennis Tour (Juniors) | Lousada | POR | J3 | EL, Results | | | |
| 21 | 25-30 May | ITF World Tennis Tour (Juniors) | Varnamo Postponed | SWE | J3 | | | | |
| 22 | 31 May-5 Jun | ITF World Tennis Tour (Juniors) | Oberpullendorf | AUT | J4 | EL, Results | | | |
| 22 | 31 May-5 Jun | ITF World Tennis Tour (Juniors) | Tbilisi | GEO | J4 | EL, Results | | | |
June |
| 22 | 1-5 Jun | ITF World Tennis Tour (Juniors) | Bytom | POL | J1 | EL, Results | | | |
| 22 | 1-5 Jun | ITF World Tennis Tour (Juniors) | Larnaca | CYP | J4 | EL, Results | | | |
| 23 | 6-12 Jun | ITF World Tennis Tour (Juniors) | Roland Garros Junior Championships, Paris | FRA | JA | EL, Results | | | |
| 23 | 7-12 Jun | ITF World Tennis Tour (Juniors) | Niksic | MNE | J5 | EL, Results | | | |
| 23 | 7-12 Jun | ITF World Tennis Tour (Juniors) | Pirogovo | RUS | J5 | EL, Results | | | |
| 23 | 7-13 Jun | ITF World Tennis Tour (Juniors) | Rivne | UKR | J4 | EL, Results | | | |
| 23 | 8-12 Jun | ITF World Tennis Tour (Juniors) | Almere Postponed | NED | J5 | | | | |
| 23 | 8-13 Jun | ITF World Tennis Tour (Juniors) | Bistrita | ROU | J4 | EL, Results | | | |
| 23 | 8-13 Jun | ITF World Tennis Tour (Juniors) | Offenbach Cancelled | GER | J1 | | | | |
| 23 | 8-13 Jun | ITF World Tennis Tour (Juniors) | Stara Zagora | BUL | J5 | EL, Results | | | |
| 23 | 8-13 Jun | ITF World Tennis Tour (Juniors) | Tarragona | ESP | J4 | EL, Results | | | |
| 23 | 9-13 Jun | ITF World Tennis Tour (Juniors) | Gdansk | POL | J4 | EL, Results | | | |
| 24 | 14-19 Jun | ITF World Tennis Tour (Juniors) | Aarhus | DEN | J4 | EL, Results | | | |
| 24 | 14-19 Jun | ITF World Tennis Tour (Juniors) | Banja Luka | BIH | J5 | EL, Results | | | |
| 24 | 14-19 Jun | ITF World Tennis Tour (Juniors) | Grand Avignon Postponed | FRA | J5 | | | | |
| 24 | 15-20 Jun | ITF World Tennis Tour (Juniors) | Bamberg Postponed | GER | J1 | | | | |
| 24 | 15-20 Jun | ITF World Tennis Tour (Juniors) | Targu Jiu | ROU | J5 | EL, Results | | | |
| 24 | 16-20 Jun | ITF World Tennis Tour (Juniors) | The Hague Postponed | NED | J3 | | | | |
| 25 | 21-26 Jun | ITF World Tennis Tour (Juniors) | Eindhoven | NED | J4 | EL, Results | | | |
| 25 | 21-26 Jun | ITF World Tennis Tour (Juniors) | Svyatopetrivske village | UKR | J3 | EL, Results | | | |
| 25 | 21-27 Jun | ITF World Tennis Tour (Juniors) | Ekaterinburg | RUS | J5 | EL, Results | | | |
| 25 | 22-27 Jun | ITF World Tennis Tour (Juniors) | Michalowek | POL | J5 | EL, Results | | | |
| 25 | 22-27 Jun | ITF World Tennis Tour (Juniors) | Preveza | GRE | J4 | EL, Results | | | |
| 26 | 28 Jun-2 Jul | ITF World Tennis Tour (Juniors) | Tallinn | EST | J4 | EL, Results | | | |
| 26 | 28 Jun-3 Jul | ITF World Tennis Tour (Juniors) | Doboj | BIH | J5 | EL, Results | | | |
| 26 | 28 Jun-3 Jul | ITF World Tennis Tour (Juniors) | Irpin | UKR | J3 | EL, Results | | | |
| 26 | 28 Jun-3 Jul | ITF World Tennis Tour (Juniors) | Sofia | BUL | J5 | EL, Results | | | |
| 26 | 28 Jun-4 Jul | ITF World Tennis Tour (Juniors) | Pilsen | CZE | J2 | EL, Results | | | |
| 26 | 28 Jun-4 Jul | ITF World Tennis Tour (Juniors) | Telavi | GEO | J5 | EL, Results | | | |
| 26 | 29 Jun-4 Jul | ITF World Tennis Tour (Juniors) | Corfu | GRE | J4 | EL, Results | | | |
| 26 | 29 Jun-4 Jul | ITF World Tennis Tour (Juniors) | Roehampton | GBR | J1 | EL, Results | | | |
| 26 | 29 Jun-4 Jul | ITF World Tennis Tour (Juniors) | Rotterdam | NED | J4 | EL, Results | | | |
| 26 | 29 Jun-4 Jul | ITF World Tennis Tour (Juniors) | Timisoara | ROU | J5 | EL, Results | | | |
|
| 26 | 30 Jun-4 Jul | ITF World Tennis Tour (Juniors) | Burchkoebel | GER | J3 | EL, Results | | | |
July |
| 27 | 5-10 Jul | ITF World Tennis Tour (Juniors) | Izmir | TUR | J5 | EL, Results | | | |
| 27 | 5-10 Jul | ITF World Tennis Tour (Juniors) | Lviv | UKR | J3 | EL, Results | | | |
| 27 | 5-10 Jul | ITF World Tennis Tour (Juniors) | Neunkirchen | GER | J3 | EL, Results | | | |
| 27 | 5-10 Jul | ITF World Tennis Tour (Juniors) | Sarajevo | BIH | J5 | EL, Results | | | |
| 27 | 5-10 Jul | ITF World Tennis Tour (Juniors) | St. Petersburg | RUS | J4 | EL, Results | | | |
| 27 | 5-10 Jul | ITF World Tennis Tour (Juniors) | Telavi | GEO | J5 | EL, Results | | | |
| 27 | 5-11 Jul | ITF World Tennis Tour (Juniors) | Limelette Postponed | BEL | J4 | | | | |
| 27 | 5-11 Jul | ITF World Tennis Tour (Juniors) | The Championships, Wimbledon | GBR | JA | EL, Results | | | |
| 27 | 5-11 Jul | ITF World Tennis Tour (Juniors) | Timisoara | ROU | J3 | EL, Results | | | |
| 27 | 6-11 Jul | ITF World Tennis Tour (Juniors) | Ioannina | GRE | J4 | EL, Results | | | |
| 27 | 6-11 Jul | ITF World Tennis Tour (Juniors) | The Hague | NED | J4 | EL, Results | | | |
| 28 | 12-17 Jul | ITF World Tennis Tour (Juniors) | Alt Erlaa | AUT | J5 | EL, Results | | | |
| 28 | 12-17 Jul | ITF World Tennis Tour (Juniors) | Hilleroed | DEN | J5 | EL, Results | | | |
| 28 | 12-17 Jul | ITF World Tennis Tour (Juniors) | Moenchengladbach Postponed | GER | J3 | | | | |
| 28 | 12-17 Jul | ITF World Tennis Tour (Juniors) | Veska | CZE | J4 | EL, Results | | | |
| 28 | 12-18 Jul | ITF World Tennis Tour (Juniors) | Milan | ITA | JA | EL, Results | | | |
| 28 | 12-18 Jul | ITF World Tennis Tour (Juniors) | St. Petersburg | RUS | J5 | EL, Results | | | |
| 28 | 12-18 Jul | ITF World Tennis Tour (Juniors) | Yerevan | ARM | J5 | EL, Results | | | |
| 28 | 13-17 Jul | ITF World Tennis Tour (Juniors) | Edinburgh | GBR | J5 | EL, Results | | | |
| 28 | 13-18 Jul | ITF World Tennis Tour (Juniors) | Rotterdam | NED | J4 | EL, Results | | | |
| 29 | 19-25 Jul | ITF World Tennis Tour (Juniors) | European Junior Championships, Klosters | SUI | JB1 | EL, Results | | | |
| 29 | 19-25 Jul | ITF World Tennis Tour (Juniors) | Yerevan | ARM | J4 | EL, Results | | | |
| 29 | 21-25 Jul | ITF World Tennis Tour (Juniors) | Hilversum | NED | J5 | EL, Results | | | |
| 30 | 26-31 Jul | ITF World Tennis Tour (Juniors) | Stobrec | CRO | J5 | EL, Results | | | |
| 30 | 27-31 Jul | ITF World Tennis Tour (Juniors) | San Marino | SMR | J5 | EL, Results | | | |
| 30 | 27 Jul-1 Aug | ITF World Tennis Tour (Juniors) | Fuerth | GER | J4 | EL, Results | | | |
| 30 | 27 Jul-1 Aug | ITF World Tennis Tour (Juniors) | Sochi | RUS | J5 | EL, Results | | | |
| 30 | 28 Jul-1 Aug | ITF World Tennis Tour (Juniors) | Poznan | POL | J3 | EL, Results | | | |
| 30 | 28 Jul-1 Aug | ITF World Tennis Tour (Juniors) | Prague | CZE | J3 | EL, Results | | | |
August |
| 31 | 2-6 Aug | ITF World Tennis Tour (Juniors) | Kazan | RUS | J5 | EL, Results | | | |
| 31 | 2-7 Aug | ITF World Tennis Tour (Juniors) | Limassol | CYP | J5 | EL, Results | | | |
| 31 | 2-7 Aug | ITF World Tennis Tour (Juniors) | Schifflange | LUX | J4 | EL, Results | | | |
| 31 | 2-8 Aug | ITF World Tennis Tour (Juniors) | Bree | BEL | J5 | EL, Results | | | |
| 31 | 2-8 Aug | ITF World Tennis Tour (Juniors) | Leiria | POR | J4 | EL, Results | | | |
| 31 | 3-7 Aug | ITF World Tennis Tour (Juniors) | Gladbeck | GER | J2 | EL, Results | | | |
| 31 | 3-7 Aug | ITF World Tennis Tour (Juniors) | Valldoreix | ESP | J5 | EL, Results | | | |
| 31 | 3-7 Aug | ITF World Tennis Tour (Juniors) | Wels | AUT | J4 | EL, Results | | | |
| 31 | 3-8 Aug | ITF World Tennis Tour (Juniors) | Radomlje | SLO | J4 | EL, Results | | | |
| 31 | 3-8 Aug | ITF World Tennis Tour (Juniors) | Zilina | SVK | J4 | EL, Results | | | |
| 31 | 4-8 Aug | ITF World Tennis Tour (Juniors) | Sobota | POL | J3 | EL, Results | | | |
| 32 | 9-13 Aug | ITF World Tennis Tour (Juniors) | Wels | AUT | J3 | EL, Results | | | |
| 32 | 9-14 Aug | ITF World Tennis Tour (Juniors) | Benidorm | ESP | J5 | EL, Results | | | |
| 32 | 9-14 Aug | ITF World Tennis Tour (Juniors) | Maaseik | BEL | J4 | EL, Results | | | |
| 32 | 9-14 Aug | ITF World Tennis Tour (Juniors) | Porto | POR | J4 | EL, Results | | | |
| 32 | 9-14 Aug | ITF World Tennis Tour (Juniors) | Skopje | MKD | J5 | EL, Results | | | |
| 32 | 9-14 Aug | ITF World Tennis Tour (Juniors) | Sofia | BUL | J4 | EL, Results | | | |
| 32 | 10-14 Aug | ITF World Tennis Tour (Juniors) | Renningen | GER | J3 | EL, Results | | | |
| 32 | 10-15 Aug | ITF World Tennis Tour (Juniors) | Hanko | FIN | J5 | EL, Results | | | |
| 32 | 10-15 Aug | ITF World Tennis Tour (Juniors) | Krakow | POL | J3 | EL, Results | | | |
|
| 32 | 10-15 Aug | ITF World Tennis Tour (Juniors) | Kranj | SLO | J4 | EL, Results | | | |
| 32 | 10-15 Aug | ITF World Tennis Tour (Juniors) | Slovenska Lupca | SVK | J5 | EL, Results | | | |
| 33 | 16-20 Aug | ITF World Tennis Tour (Juniors) | Riga | LAT | J4 | EL, Results | | | |
| 33 | 16-21 Aug | ITF World Tennis Tour (Juniors) | Maribor | SLO | J4 | EL, Results | | | |
| 33 | 16-21 Aug | ITF World Tennis Tour (Juniors) | Porto | POR | J5 | EL, Results | | | |
| 33 | 16-21 Aug | ITF World Tennis Tour (Juniors) | Puscha Voditsa | UKR | J3 | EL, Results | | | |
| 33 | 16-21 Aug | ITF World Tennis Tour (Juniors) | Skopje | MKD | J4 | EL, Results | | | |
| 33 | 16-22 Aug | ITF World Tennis Tour (Juniors) | Cuneo | ITA | J5 | EL, Results | | | |
| 33 | 16-22 Aug | ITF World Tennis Tour (Juniors) | Heiveld | BEL | J5 | EL, Results | | | |
| 33 | 17-22 Aug | ITF World Tennis Tour (Juniors) | Clermont-Ferrand | FRA | J4 | EL, Results | | | |
| 33 | 18-22 Aug | ITF World Tennis Tour (Juniors) | Budapest | HUN | J2 | EL, Results | | | |
| 33 | 18-22 Aug | ITF World Tennis Tour (Juniors) | Kramfors | SWE | J5 | EL, Results | | | |
| 33 | 18-22 Aug | ITF World Tennis Tour (Juniors) | Prague | CZE | J3 | EL, Results | | | |
| 33 | 18-22 Aug | ITF World Tennis Tour (Juniors) | Puszczykowo | POL | J5 | EL, Results | | | |
| 34 | 23-28 Aug | ITF World Tennis Tour (Juniors) | Dijon | FRA | J4 | EL, Results | | | |
| 34 | 23-28 Aug | ITF World Tennis Tour (Juniors) | Pancevo | SRB | J1 | EL, Results | | | |
| 34 | 23-29 Aug | ITF World Tennis Tour (Juniors) | Salsomaggiore | ITA | J2 | EL, Results | | | |
| 34 | 23-29 Aug | ITF World Tennis Tour (Juniors) | Samara | RUS | J4 | EL, Results | | | |
| 34 | 24-28 Aug | ITF World Tennis Tour (Juniors) | Barcelona | ESP | J3 | EL, Results | | | |
| 34 | 24-29 Aug | ITF World Tennis Tour (Juniors) | Bucharest | ROU | J5 | EL, Results | | | |
| 34 | 24-29 Aug | ITF World Tennis Tour (Juniors) | Domzale | SLO | J4 | EL, Results | | | |
| 34 | 25-29 Aug | ITF World Tennis Tour (Juniors) | Liberec | CZE | J5 | EL, Results | | | |
| 35 | 30 Aug-3 Sep | ITF World Tennis Tour (Juniors) | Liepaja | LAT | J3 | EL, Results | | | |
| 35 | 30 Aug-4 Sep | ITF World Tennis Tour (Juniors) | Menton | FRA | J5 | EL, Results | | | |
| 35 | 30 Aug-4 Sep | ITF World Tennis Tour (Juniors) | Tbilisi Postponed | GEO | J5 | | | | |
| 35 | 30 Aug-4 Sep | ITF World Tennis Tour (Juniors) | Varna | BUL | J5 | EL, Results | | | |
| 35 | 30 Aug-5 Sep | ITF World Tennis Tour (Juniors) | Novi Sad | SRB | J2 | EL, Results | | | |
| 35 | 31 Aug-4 Sep | ITF World Tennis Tour (Juniors) | Larnaca | CYP | J4 | EL, Results | | | |
| 35 | 31 Aug-4 Sep | ITF World Tennis Tour (Juniors) | Togliatti | RUS | J4 | EL, Results | | | |
| 35 | 31 Aug-5 Sep | ITF World Tennis Tour (Juniors) | Kreuzlingen | SUI | J5 | EL, Results | | | |
| 35 | 31 Aug-5 Sep | ITF World Tennis Tour (Juniors) | Les Franqueses del Valles | ESP | J3 | EL, Results | | | |
| 35 | 31 Aug-5 Sep | ITF World Tennis Tour (Juniors) | Merzig | GER | J3 | EL, Results | | | |
| 35 | 31 Aug-5 Sep | ITF World Tennis Tour (Juniors) | Ostrava | CZE | J5 | EL, Results | | | |
September |
| 35 | 1-5 Sep | ITF World Tennis Tour (Juniors) | Bratislava | SVK | J5 | EL, Results | | | |
| 35 | 1-5 Sep | ITF World Tennis Tour (Juniors) | Szczawno Zdroj | POL | J5 | EL, Results | | | |
| 36 | 6-11 Sep | ITF World Tennis Tour (Juniors) | Barcelona | ESP | J3 | EL, Results | | | |
| 36 | 6-11 Sep | ITF World Tennis Tour (Juniors) | Grand Avignon Cancelled | FRA | J5 | | | | |
| 36 | 6-12 Sep | ITF World Tennis Tour (Juniors) | Baku | AZE | J5 | EL, Results | | | |
| 36 | 6-12 Sep | ITF World Tennis Tour (Juniors) | Peja | KOS | J5 | EL, Results | | | |
| 36 | 6-12 Sep | ITF World Tennis Tour (Juniors) | Zlatibor | SRB | J5 | EL, Results | | | |
| 36 | 7-11 Sep | ITF World Tennis Tour (Juniors) | Luzern | SUI | J4 | EL, Results | | | |
| 36 | 7-11 Sep | ITF World Tennis Tour (Juniors) | Palermo | ITA | J3 | EL, Results | | | |
| 36 | 7-12 Sep | ITF World Tennis Tour (Juniors) | Mostar | BIH | J5 | EL, Results | | | |
| 36 | 7-12 Sep | ITF World Tennis Tour (Juniors) | Rakovnik | CZE | J2 | EL, Results | | | |
| 36 | 8-12 Sep | ITF World Tennis Tour (Juniors) | Bielsko-Biala | POL | J5 | EL, Results | | | |
| 37 | 13-18 Sep | ITF World Tennis Tour (Juniors) | El Prat de Llobregat | ESP | J3 | EL, Results | | | |
| 37 | 13-18 Sep | ITF World Tennis Tour (Juniors) | Frederiksberg | DEN | J4 | EL, Results | | | |
| 37 | 13-18 Sep | ITF World Tennis Tour (Juniors) | Horgen | SUI | J5 | EL, Results | | | |
| 37 | 13-19 Sep | ITF World Tennis Tour (Juniors) | Baku | AZE | J5 | EL, Results | | | |
| 37 | 13-19 Sep | ITF World Tennis Tour (Juniors) | Chornomorsk | UKR | J5 | EL, Results | | | |
|
| 37 | 13-19 Sep | ITF World Tennis Tour (Juniors) | Constanta | ROU | J3 | EL, Results | | | |
| 37 | 13-19 Sep | ITF World Tennis Tour (Juniors) | Hannover | GER | J1 | EL, Results | | | |
| 37 | 14-19 Sep | ITF World Tennis Tour (Juniors) | Mostar | BIH | J3 | EL, Results | | | |
| 38 | 20-24 Sep | ITF World Tennis Tour (Juniors) | Loughborough | GBR | J4 | EL, Results | | | |
| 38 | 20-25 Sep | ITF World Tennis Tour (Juniors) | Charleroi-Marcinelle | BEL | J1 | EL, Results | | | |
| 38 | 20-25 Sep | ITF World Tennis Tour (Juniors) | Mytilene | GRE | J5 | EL, Results | | | |
| 38 | 20-25 Sep | ITF World Tennis Tour (Juniors) | Roskilde | DEN | J5 | EL, Results | | | |
| 38 | 20-25 Sep | ITF World Tennis Tour (Juniors) | Sozopol | BUL | J5 | EL, Results | | | |
| 38 | 20-25 Sep | ITF World Tennis Tour (Juniors) | Tirana | ALB | J5 | EL, Results | | | |
| 38 | 20-26 Sep | ITF World Tennis Tour (Juniors) | Baku | AZE | J5 | EL, Results | | | |
| 38 | 21-26 Sep | ITF World Tennis Tour (Juniors) | Mijas Costa | ESP | J5 | EL, Results | | | |
| 39 | 27 Sep-1 Oct | ITF World Tennis Tour (Juniors) | Aizkraukle | LAT | J5 | EL, Results | | | |
| 39 | 27 Sep-2 Oct | ITF World Tennis Tour (Juniors) | Baku | AZE | J5 | EL, Results | | | |
| 39 | 27 Sep-2 Oct | ITF World Tennis Tour (Juniors) | Loughborough | GBR | J4 | EL, Results | | | |
| 39 | 27 Sep-2 Oct | ITF World Tennis Tour (Juniors) | Rhodes | GRE | J4 | EL, Results | | | |
| 39 | 27 Sep-2 Oct | ITF World Tennis Tour (Juniors) | Tirana | ALB | J5 | EL, Results | | | |
| 39 | 27 Sep-3 Oct | ITF World Tennis Tour (Juniors) | Veli Losinj | CRO | J4 | EL, Results | | | |
| 39 | 28 Sep-2 Oct | ITF World Tennis Tour (Juniors) | Ingelheim | GER | J3 | EL, Results | | | |
| 39 | 28 Sep-2 Oct | ITF World Tennis Tour (Juniors) | Majadahonda | ESP | J5 | EL, Results | | | |
| 39 | 28 Sep-3 Oct | ITF World Tennis Tour (Juniors) | 2021 Junior Billie Jean King Cup by BNP Paribas Finals, Antalya | TUR | JC | Results | | | |
| 39 | 28 Sep-3 Oct | ITF World Tennis Tour (Juniors) | 2021 Junior Davis Cup by BNP Paribas Finals, Antalya | TUR | JC | Results | | | |
| 39 | 29 Sep-3 Oct | ITF World Tennis Tour (Juniors) | Prostejov | CZE | J5 | EL, Results | | | |
October |
| 40 | 4-8 Oct | ITF World Tennis Tour (Juniors) | Jurmala | LAT | J5 | EL, Results | | | |
| 40 | 4-9 Oct | ITF World Tennis Tour (Juniors) | Aviles | ESP | J5 | EL, Results | | | |
| 40 | 4-9 Oct | ITF World Tennis Tour (Juniors) | Honfleur | FRA | J5 | EL, Results | | | |
| 40 | 4-9 Oct | ITF World Tennis Tour (Juniors) | Pescara | ITA | J5 | EL, Results | | | |
| 40 | 4-10 Oct | ITF World Tennis Tour (Juniors) | Istanbul | TUR | J5 | EL, Results | | | |
| 40 | 4-10 Oct | ITF World Tennis Tour (Juniors) | Maria Lanzendorf | AUT | J3 | EL, Results | | | |
| 40 | 4-10 Oct | ITF World Tennis Tour (Juniors) | Portimao | POR | J5 | EL, Results | | | |
| 40 | 4-10 Oct | ITF World Tennis Tour (Juniors) | Ulcinj | MNE | J5 | EL, Results | | | |
| 40 | 5-10 Oct | ITF World Tennis Tour (Juniors) | Vrsar | CRO | J1 | EL, Results | | | |
| 40 | 6-10 Oct | ITF World Tennis Tour (Juniors) | Bromma | SWE | J4 | EL, Results | | | |
| 41 | 11-16 Oct | ITF World Tennis Tour (Juniors) | Hamburg | GER | J4 | EL, Results | | | |
| 41 | 11-16 Oct | ITF World Tennis Tour (Juniors) | Kramfors | SWE | J4 | EL, Results | | | |
| 41 | 11-16 Oct | ITF World Tennis Tour (Juniors) | Seefeld-Tirol | AUT | J5 | EL, Results | | | |
| 41 | 11-16 Oct | ITF World Tennis Tour (Juniors) | Siroki Brijeg | BIH | J4 | EL, Results | | | |
| 41 | 11-16 Oct | ITF World Tennis Tour (Juniors) | Tremosine | ITA | J5 | EL, Results | | | |
| 41 | 11-16 Oct | ITF World Tennis Tour (Juniors) | Yerevan | ARM | J5 | EL, Results | | | |
| 41 | 11-17 Oct | ITF World Tennis Tour (Juniors) | Istanbul | TUR | J2 | EL, Results | | | |
| 41 | 11-17 Oct | ITF World Tennis Tour (Juniors) | Ponts de Ce | FRA | J5 | EL, Results | | | |
| 41 | 11-17 Oct | ITF World Tennis Tour (Juniors) | Porec | CRO | J4 | EL, Results | | | |
| 41 | 11-17 Oct | ITF World Tennis Tour (Juniors) | Prerov | CZE | J5 | EL, Results | | | |
| 41 | 11-17 Oct | ITF World Tennis Tour (Juniors) | Vale Do Lobo | POR | J5 | EL, Results | | | |
| 41 | 12-16 Oct | ITF World Tennis Tour (Juniors) | Emmeloord | NED | J4 | EL, Results | | | |
| 41 | 12-16 Oct | ITF World Tennis Tour (Juniors) | Vigo | ESP | J2 | EL, Results | | | |
| 42 | 18-23 Oct | ITF World Tennis Tour (Juniors) | Nastola | FIN | J5 | EL, Results | | | |
| 42 | 18-23 Oct | ITF World Tennis Tour (Juniors) | Siroki Brijeg | BIH | J4 | EL, Results | | | |
| 42 | 18-23 Oct | ITF World Tennis Tour (Juniors) | Yerevan | ARM | J5 | EL, Results | | | |
| 42 | 18-24 Oct | ITF World Tennis Tour (Juniors) | Colomiers | FRA | J5 | EL, Results | | | |
| 42 | 18-24 Oct | ITF World Tennis Tour (Juniors) | Dubrovnik | CRO | J3 | EL, Results | | | |
|
| 42 | 19-24 Oct | ITF World Tennis Tour (Juniors) | Sanxenxo | ESP | J1 | EL, Results | | | |
| 42 | 20-24 Oct | ITF World Tennis Tour (Juniors) | Budapest | HUN | J4 | EL, Results | | | |
| 42 | 20-24 Oct | ITF World Tennis Tour (Juniors) | The Hague | NED | J5 | EL, Results | | | |
| 43 | 25-30 Oct | ITF World Tennis Tour (Juniors) | Bari | ITA | J5 | EL, Results | | | |
| 43 | 25-31 Oct | ITF World Tennis Tour (Juniors) | Novokuznetsk | RUS | J3 | EL, Results | | | |
| 43 | 25-31 Oct | ITF World Tennis Tour (Juniors) | Siauliai | LTU | J5 | EL, Results | | | |
| 43 | 26-30 Oct | ITF World Tennis Tour (Juniors) | La Nucia | ESP | J5 | EL, Results | | | |
| 43 | 26-31 Oct | ITF World Tennis Tour (Juniors) | Vierumaki | FIN | J4 | EL, Results | | | |
| 43 | 27-31 Oct | ITF World Tennis Tour (Juniors) | Szekesfehervar | HUN | J2 | EL, Results | | | |
November |
| 44 | 1-6 Nov | ITF World Tennis Tour (Juniors) | Paralimni | CYP | J5 | EL, Results | | | |
| 44 | 1-7 Nov | ITF World Tennis Tour (Juniors) | Blagnac | FRA | J5 | EL, Results | | | |
| 44 | 1-7 Nov | ITF World Tennis Tour (Juniors) | Heiveld | BEL | J4 | EL, Results | | | |
| 44 | 2-6 Nov | ITF World Tennis Tour (Juniors) | Sestroretsk Cancelled | RUS | J5 | | | | |
| 44 | 2-6 Nov | ITF World Tennis Tour (Juniors) | Silla-Saladar | ESP | J5 | EL, Results | | | |
| 44 | 3-7 Nov | ITF World Tennis Tour (Juniors) | Tampere | FIN | J4 | EL, Results | | | |
| 45 | 8-13 Nov | ITF World Tennis Tour (Juniors) | Nicosia | CYP | J3 | EL, Results | | | |
| 45 | 9-13 Nov | ITF World Tennis Tour (Juniors) | Montemar | ESP | J5 | EL, Results | | | |
| 45 | 9-14 Nov | ITF World Tennis Tour (Juniors) | Leimen | GER | J5 | EL, Results | | | |
| 45 | 9-14 Nov | ITF World Tennis Tour (Juniors) | Liverpool | GBR | J5 | EL, Results | | | |
| 46 | 15-19 Nov | ITF World Tennis Tour (Juniors) | Liverpool | GBR | J4 | EL, Results | | | |
| 46 | 15-20 Nov | ITF World Tennis Tour (Juniors) | Istanbul | TUR | J5 | EL, Results | | | |
| 46 | 15-20 Nov | ITF World Tennis Tour (Juniors) | Khanty-Mansiysk | RUS | J5 | EL, Results | | | |
| 46 | 16-20 Nov | ITF World Tennis Tour (Juniors) | Haifa | ISR | J3 | EL, Results | | | |
| 46 | 17-21 Nov | ITF World Tennis Tour (Juniors) | Pszczyna | POL | J4 | EL, Results | | | |
| 47 | 22-27 Nov | ITF World Tennis Tour (Juniors) | Adana | TUR | J3 | EL, Results | | | |
| 47 | 22-27 Nov | ITF World Tennis Tour (Juniors) | Kiryat Shmona | ISR | J2 | EL, Results | | | |
| 47 | 22-27 Nov | ITF World Tennis Tour (Juniors) | Maribor | SLO | J4 | EL, Results | | | |
| 47 | 23-27 Nov | ITF World Tennis Tour (Juniors) | Stavanger | NOR | J5 | EL, Results | | | |
| 47 | 23-28 Nov | ITF World Tennis Tour (Juniors) | Nastola | FIN | J5 | EL, Results | | | |
| 48 | 29 Nov-4 Dec | ITF World Tennis Tour (Juniors) | Aizkraukle | LAT | J3 | EL, Results | | | |
| 48 | 30 Nov-4 Dec | ITF World Tennis Tour (Juniors) | Saint Gregoire | FRA | J3 | EL, Results | | | |
| 48 | 30 Nov-5 Dec | ITF World Tennis Tour (Juniors) | Fleesensee Cancelled | GER | J3 | EL | | | |
December |
| 48 | 1-5 Dec | ITF World Tennis Tour (Juniors) | Bergen | NOR | J3 | EL, Results | | | |
| 49 | 6-10 Dec | ITF World Tennis Tour (Juniors) | Loughborough | GBR | J3 | EL, Results | | | |
| 49 | 6-11 Dec | ITF World Tennis Tour (Juniors) | Aizkraukle | LAT | J3 | EL, Results | | | |