Jonas Kollert (CZE)
Country: Czech Republic,
Born in 2008,
Category: Junior, Boys
ITF Ranking
1759
-10
Season High : 1712
Career High : 1712
| Tierlevel | Tourn. | Titles | Matches | Wins | Losses | PCT | 6-0 | 0-6 | 7-6 | 6-7 | Total | 6 | 0 | 15 | 9 | 6 | 0.600 | 1 | 0 | 0 | 0 |
|---|---|---|---|---|---|---|---|---|---|---|
| J60 Boys | 1 | 0 | 2 | 1 | 1 | 0.500 | 0 | 0 | 0 | 0 |
| J30 Boys | 5 | 0 | 13 | 8 | 5 | 0.615 | 1 | 0 | 0 | 0 |
Tournaments played in 2025
See detailed tennis results of Jonas Kollert| Oct 28 | J30B | SF | J30 Berlin \ BETT1 Berlin Juniors, Berlin(GER) |
| Sep 29 | J30B | 1/8 | J30 Maria-Lanzendorf \ Maria Lanzendorf Open, Maria-Lanzendorf(AUT) |
| Sep 01 | J200B | [Q] | J200 Rakovnik \ Thun Czech Junior Open, Rakovnik(CZE) |
| Aug 18 | J100B | [Q] | J100 Prague \ CLTK Prague CUP, Prague(CZE) |
| Aug 04 | J30B | QF | J30 Frederiksberg, Frederiksberg(DEN) |
| Jul 28 | J30B | 1/16 | J30 Copenhagen, Copenhagen(DEN) |
| Jul 07 | J60B | 1/16 | J60 Veska \ ITF Veska, Dolany-Veska(CZE) |
| Jul 07 | J60B | [Q] | J60 Veska \ ITF Veska, Dolany-Veska(CZE) |
| Jun 30 | J100B | [Q] | J100 Prague \ Moravia Steel Sparta Cup, Prague(CZE) |
| Jun 23 | J200B | [Q] | J200 Pilsen \ Ex Pilsen Babolat Cup, Pilsen(CZE) |
| Jun 10 | J30B | [Q] | J30 Liberec \ Junior Liberec Open, Liberec(CZE) |
| May 27 | J30B | [Q] | J30 Hradec Kralove \ Hit Cup, Hradec Kralove(CZE) |
| May 27 | J30B | 1/8 | J30 Hradec Kralove \ Hit Cup, Hradec Kralove(CZE) |
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