 Poland: M15 Bielsko Biala - Doubles - Main |
|---|
| Semi-finals | Hrazdil J./Vales V. | Horak O./Szymkowiak K. | 2:0 (6:2, 6:2) | details | 16.08.2024 |
| Quarter-finals | Horak O./Szymkowiak K. | Ostapenkov D./Zgirovsky A. | 2:0 (6:3, 6:4) | details | 15.08.2024 |
| 1/8-finals | Baranec D./Paulovcak S. | Horak O./Szymkowiak K. | 0:2 (3:6, 63:7) | details | 13.08.2024 |
 Slovakia: M15 Poprad - Doubles - Main |
|---|
| Quarter-finals | Horak O./Jermar J. | Halmos K./Kisantal B. | 1:2 (4:6, 6:2, 8:10) | details | 25.07.2024 |
| 1/8-finals | Puskar S./Rivera L. | Horak O./Jermar J. | 0:2 (1:6, 4:6) | details | 23.07.2024 |
 Austria: M25 Telfs - Doubles - Main |
|---|
| 1/8-finals | Horak O./Jermar J. | Duda F./Wehnelt K. | 0:2 (1:6, 1:6) | details | 16.07.2024 |
 Croatia: M15 Umag - Doubles - Main |
|---|
| Quarter-finals | Kajin K./Zmak D. | Al Azmeh T./Horak O. | 2:0 (6:3, 6:2) | details | 11.07.2024 |
| 1/8-finals | Al Azmeh T./Horak O. | Decamps G./Jakic M. | 2:0 (6:4, 6:3) | details | 10.07.2024 |
 Hungary: M15 Nyiregyhaza 2 - Doubles - Main |
|---|
| Quarter-finals | Horak O./Kalina V. | Bakonyi D./Jilly A. | 0:2 (3:6, 62:7) | details | 20.06.2024 |
| 1/8-finals | Horak O./Kalina V. | Katuch J./Krajci M. | 2:0 (6:3, 6:3) | details | 18.06.2024 |
| 1/8-finals | Horak O./Kalina V. | Beloborodko I./Poritskyy A. | CAN. | details | 18.06.2024 |
| Hungary: M15 Nyiregyhaza - Doubles - Main |
|---|
| 1/8-finals | Horak O./Pecak S. | Bosio G./Matsuda K. | CAN. | details | 11.06.2024 |
 Dominican Republic: M15 Santo Domingo 3 - Doubles - Main |
|---|
| 1/8-finals | Horak O./Kamrowski M. | Asaba A./Nortey I. | 1:2 (6:3, 4:6, 7:10) | details | 14.11.2023 |
| Dominican Republic: M15 Santo Domingo 2 - Doubles - Main |
|---|
| Quarter-finals | Horak O./Kamrowski M. | Asaba A./Ogura K. | CAN. | details | 12.11.2023 |
| 1/8-finals | Gomez Osorio A./Vlahos A. | Horak O./Kamrowski M. | 0:2 (3:6, 1:6) | details | 12.11.2023 |
| Poland: M25 Bielsko Biala - Doubles - Main |
|---|
| Semi-finals | Barnat J./Duda F. | Horak O./Siniakov D. | 2:0 (7:5, 6:2) | details | 18.08.2023 |
| Quarter-finals | Horak O./Siniakov D. | Bielinskyi V./Westphal M. | 2:0 (7:5, 6:4) | details | 17.08.2023 |
| 1/8-finals | Horak O./Siniakov D. | Alosha Ushakov N./Mashtakov N. | 2:0 (6:3, 6:3) | details | 15.08.2023 |
| Austria: M25 Kramsach - Doubles - Main |
|---|
| Quarter-finals | Heller P./Wehnelt K. | Horak O./Pecak S. | 2:1 (6:3, 4:6, 10:3) | details | 28.07.2023 |
| 1/8-finals | Horak O./Pecak S. | Barton H./Lusovsky M. | 2:1 (3:6, 6:3, 12:10) | details | 25.07.2023 |
| Austria: M25 Telfs - Doubles - Main |
|---|
| 1/8-finals | Karol M./Kopp S. | Horak O./Siniakov D. | 2:0 (6:3, 6:2) | details | 20.07.2023 |
| Slovakia: M25 Poprad - Doubles - Main |
|---|
| Semi-finals | Horak O./Pecak S. | Orlov V./Paty D. | 0:2 (1:6, 3:6) | details | 23.06.2023 |
| Quarter-finals | Horak O./Pecak S. | Karol M./Pokorny L. | 2:1 (5:7, 6:4, 10:7) | details | 22.06.2023 |
| 1/8-finals | Horak O./Pecak S. | Mashtakov N./Pieczkowski O. | 2:0 (6:4, 6:2) | details | 20.06.2023 |
 Czech Republic: M25 Jablonec nad Nisou - Doubles - Main |
|---|
| Quarter-finals | Horak O./Siniakov D. | Babic Z./Sultanov K. | 0:2 (4:6, 63:7) | details | 01.06.2023 |
| 1/8-finals | Horak O./Siniakov D. | Cizek J./Facek J. | 2:0 (7:5, 6:2) | details | 30.05.2023 |
| Czech Republic: M25 Most - Doubles - Main |
|---|
| Final | Parker S./Paul J. | Horak O./Siniakov D. | 2:0 (6:3, 6:2) | details | 27.05.2023 |
| Semi-finals | Horak O./Siniakov D. | Babic Z./Hermans M. | 2:1 (7:64, 2:6, 10:5) | details | 26.05.2023 |
| Quarter-finals | Horak O./Siniakov D. | Karol M./Stodder T. | 2:1 (3:6, 6:3, 10:8) | details | 25.05.2023 |
| 1/8-finals | Cizek J./Postolka R. | Horak O./Siniakov D. | 0:2 (4:6, 4:6) | details | 23.05.2023 |
| Dominican Republic: M15 Santo Domingo - Doubles - Main |
|---|
| 1/8-finals | Foster-Estwick M./King D. | Horak O./Kamrowski M. | 2:1 (6:3, 2:6, 11:9) | details | 22.11.2022 |
 USA: M15 East Lansing, MI - Doubles - Main |
|---|
| 1/8-finals | Caripi V./Horak O. | Kiger M./Maginley J. | 1:2 (7:5, 2:6, 8:10) | details | 15.11.2022 |
| Austria: M25 Telfs - Doubles - Main |
|---|
| Final | Horak O./Siniakov D. | Kopp S./Veldheer M. | 0:2 (4:6, 3:6) | details | 16.07.2022 |
| Semi-finals | Kivattsev K./Motti A. | Horak O./Siniakov D. | 1:2 (2:6, 6:4, 11:13) | details | 15.07.2022 |
| Quarter-finals | Gloeckler M./Waldner N. | Horak O./Siniakov D. | 0:2 (4:6, 4:6) | details | 14.07.2022 |
