 Croatia: M15 Split - Doubles - Main |
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| Quarter-finals | Heinonen A./Jakic M. | Basic M./Simundza J. | 2:1 (64:7, 7:63, 10:7) | details | 25.04.2024 |
| 1/8-finals | Basic M./Simundza J. | Caniato C. A./Sciahbasi L. | 2:0 (6:3, 6:1) | details | 23.04.2024 |
| Croatia: M15 Dubrovnik - Doubles - Main |
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| 1/8-finals | Pichler D./Vrbensky M. | Basic M./Simundza J. | 2:0 (7:68, 6:4) | details | 16.04.2024 |
| Croatia: Zadar - Doubles - Main |
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| 1/8-finals | Jebavy R./Kolar Z. | Dodig M./Simundza J. | 2:1 (4:6, 6:3, 10:8) | details | 20.03.2024 |
| Croatia: M15 Rovinj - Doubles - Main |
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| 1/8-finals | Clarke J./Simundza J. | Kaukovalta P./Vulpitta G. | 0:2 (5:7, 2:6) | details | 12.03.2024 |
| Croatia: M15 Porec - Doubles - Main |
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| 1/8-finals | Pavlovic L./Radjenovic V. | Clarke J./Simundza J. | 2:0 (6:4, 7:62) | details | 05.03.2024 |
 Spain: M15 Manacor 3 - Doubles - Main |
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| 1/8-finals | Simundza J./Verbin P. | Kaukovalta P./Troost S. | 1:2 (3:6, 7:67, 7:10) | details | 23.01.2024 |
| Spain: M15 Manacor 2 - Doubles - Main |
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| Quarter-finals | Lopez Morillo I./Virgili A. | Simundza J./Verbin P. | 2:0 (6:2, 7:61) | details | 18.01.2024 |
| 1/8-finals | Simundza J./Verbin P. | Bonsach G. K./Callejon H. S. | 2:0 (6:3, 7:64) | details | 16.01.2024 |
 Turkey: M25 Antalya 3 - Doubles - Main |
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| Final | Aksu C./Turker M. N. | Clarke J./Simundza J. | 1:2 (6:1, 68:7, 8:10) | details | 26.11.2023 |
| Semi-finals | Popovic S./Snitari I. | Clarke J./Simundza J. | 1:2 (5:7, 6:4, 6:10) | details | 24.11.2023 |
| Quarter-finals | Golubev D./Tiurnev E. | Clarke J./Simundza J. | 0:2 (3:6, 4:6) | details | 23.11.2023 |
| 1/8-finals | Clarke J./Simundza J. | Agabigun S./Ozdemir S. M. | 2:1 (6:3, 3:6, 10:5) | details | 22.11.2023 |
| Turkey: M25 Antalya 2 - Doubles - Main |
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| 1/8-finals | Palosi S./Snitari I. | Michalik R./Simundza J. | 2:0 (7:5, 6:0) | details | 16.11.2023 |
| Croatia: M25 Osijek - Doubles - Main |
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| 1/8-finals | Biljesko D./Simundza J. | Jakic M./Milicevic S. | 1:2 (3:6, 6:4, 7:10) | details | 09.08.2023 |
| Croatia: M15 Osijek - Doubles - Main |
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| Quarter-finals | Babic Z./Mikrut L. | Simundza J./Tonejc V. | 2:0 (6:3, 6:3) | details | 04.05.2023 |
| 1/8-finals | Simundza J./Tonejc V. | Premzl M./Znuderl M. | 2:1 (4:6, 6:2, 10:5) | details | 02.05.2023 |
| Croatia: M25 Split - Doubles - Main |
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| Quarter-finals | Matuszewski P./Prihodko O. | Brkic J./Simundza J. | 2:0 (6:2, 6:4) | details | 21.04.2023 |
| 1/8-finals | Brkic J./Simundza J. | Tumbas Kajgo K./Voljavec A. | 2:0 (6:3, 6:3) | details | 21.04.2023 |
| Croatia: M25 Dubrovnik - Doubles - Main |
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| Semi-finals | Basic N./Kremenchutskyi I. | Heger T./Simundza J. | 2:1 (65:7, 7:63, 10:3) | details | 07.04.2023 |
| Quarter-finals | Heger T./Simundza J. | Ivanov S. A./Wenger D. | 2:0 (7:64, 7:67) | details | 06.04.2023 |
| 1/8-finals | Heger T./Simundza J. | Kekez D./Milanovic L. | 2:0 (6:3, 6:4) | details | 04.04.2023 |
| Croatia: M15 Rovinj - Doubles - Main |
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| 1/8-finals | Simundza J./Vukadin N. | Tabacco F./Tabacco G. | 0:2 (62:7, 61:7) | details | 15.03.2023 |
| Croatia: M25 Split - Doubles - Main |
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| 1/8-finals | Erceg L./Simundza J. | Biljesko D./Juszczak P. | 0:2 (2:6, 2:6) | details | 26.04.2022 |
Hungary: M15 Budapest 2 - Singles - Main
Slovenia: M15 Litija - Singles - Main