 Australia: M25 Swan Hill - Doubles - Main |
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| Quarter-finals | Gaal C./Gray T. | Oster S./Ryan Ziegann S. | 2:0 (6:4, 6:3) | dettagli | 21.03.2024 |
| 1/8-finals | Oster S./Ryan Ziegann S. | Charlton J./Ellis B. | WO. | dettagli | 19.03.2024 |
| Australia: M25 Gold Coast - Doubles - Main |
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| 1/8-finals | Fancutt T. J./Rai A. | Gadecki T. N./Oster S. | 2:0 (6:2, 6:0) | dettagli | 30.11.2023 |
| Australia: M25 Brisbane - Doubles - Main |
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| Quarter-finals | Fancutt T. J./Rai A. | Gaal C./Oster S. | 2:0 (6:1, 6:3) | dettagli | 24.11.2023 |
| 1/8-finals | Karpinski T./Papac T. E. | Gaal C./Oster S. | 0:2 (3:6, 2:6) | dettagli | 23.11.2023 |
| Australia: M25 Cairns 2 - Doubles - Main |
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| 1/8-finals | Oster S./Ryan Ziegann S. | Bayldon B./Brumm J. | 0:2 (4:6, 5:7) | dettagli | 11.10.2023 |
| Australia: M25 Darwin 2 - Doubles - Main |
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| Quarter-finals | Bayldon B./Walkin B. | Jones S./Oster S. | 2:0 (6:4, 7:64) | dettagli | 21.09.2023 |
| 1/8-finals | Jones S./Oster S. | Adam-Gedge Z./Vickery L. | 2:0 (7:5, 6:2) | dettagli | 20.09.2023 |
| Australia: M25 Darwin - Doubles - Main |
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| Semi-finals | Charlton J./Ellis B. | Oster S./Ryan Ziegann S. | 2:0 (6:2, 7:5) | dettagli | 15.09.2023 |
| Quarter-finals | Oster S./Ryan Ziegann S. | Addison A./Cook E. | 2:1 (5:7, 6:3, 10:8) | dettagli | 14.09.2023 |
| 1/8-finals | De Vivo N./Wilkinson C. | Oster S./Ryan Ziegann S. | 0:2 (4:6, 4:6) | dettagli | 13.09.2023 |
| Australia: M15 Caloundra 2 - Doubles - Main |
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| 1/8-finals | Gadecki T. N./Oster S. | Dabas N./Matsumura R. | 2:1 (4:6, 7:66, 10:8) | dettagli | 03.08.2023 |
| Quarter-finals | Reynolds R./Ryan Ziegann S. | Gadecki T. N./Oster S. | 2:0 (6:1, 6:2) | dettagli | 03.08.2023 |
| Australia: M15 Caloundra - Doubles - Main |
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| Quarter-finals | Kelly D./Oster S. | Hoole C./Sach T. | 0:2 (1:6, 1:6) | dettagli | 28.07.2023 |
| 1/8-finals | Loutit J./Matsuda R. | Kelly D./Oster S. | 1:2 (6:1, 5:7, 4:10) | dettagli | 25.07.2023 |
 Slovenia: M15 Celje - Doubles - Main |
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| 1/8-finals | Casanova A./Stepanov T. | Bill A./Oster S. | CAN. | dettagli | 29.06.2023 |
| Slovenia: M15 Store - Doubles - Main |
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| Quarter-finals | Donski A./Kellovsky D. | Oster S./Talic Z. | 2:0 (6:4, 6:2) | dettagli | 22.06.2023 |
| 1/8-finals | Horvat R./Horvat V. | Oster S./Talic Z. | 0:2 (3:6, 4:6) | dettagli | 20.06.2023 |
| Slovenia: M15 Litija - Doubles - Main |
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| 1/8-finals | Gaal C./Oster S. | Hrazdil J./Safranek V. | 0:2 (4:6, 1:6) | dettagli | 14.06.2023 |
 Bosnia and Herzegovina: M15 Sarajevo - Doubles - Main |
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| 1/8-finals | Romios M. C./Walkin B. | Oster S./Talic Z. | 2:1 (6:4, 65:7, 10:7) | dettagli | 07.06.2023 |
 Croatia: M15 Osijek - Doubles - Main |
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| 1/8-finals | Bocchi L./Dell'Elba V. | Bill A./Oster S. | 2:0 (6:4, 6:3) | dettagli | 02.05.2023 |
| Australia: M25 Canberra 2 - Doubles - Main |
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| 1/8-finals | Oster S./Talic Z. | Karpinski T./Papac T. E. | 0:2 (3:6, 4:6) | dettagli | 21.03.2023 |
| Australia: M25 Canberra - Doubles - Main |
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| 1/8-finals | Oster S./Snow C. | Ito T./Suzuki K. | 0:2 (2:6, 4:6) | dettagli | 15.03.2023 |
| Australia: M25 Burnie - Doubles - Main |
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| 1/8-finals | Oster S./Pham D. | Hazawa S./Shimizu Y. | 0:2 (0:6, 1:6) | dettagli | 07.02.2023 |
 New Zealand: M15 Wellington - Doubles - Main |
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| 1/8-finals | Puttergill C./Puttergill L. | Klintcharov A./Oster S. | 2:0 (6:2, 6:2) | dettagli | 13.12.2022 |
| Australia: M25 Cairns 2 - Doubles - Main |
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| 1/8-finals | Ellis B./Schoolkate T. | Braithwaite T./Oster S. | 2:0 (6:1, 7:5) | dettagli | 11.10.2022 |
| Australia: M25 Cairns - Doubles - Main |
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| 1/8-finals | Ellis B./Schoolkate T. | Oster S./Sweeny D. | 2:0 (6:1, 6:0) | dettagli | 05.10.2022 |
| Australia: M25 Darwin 2 - Doubles - Main |
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| 1/8-finals | Braithwaite T./Oster S. | Jin J./Pham D. | 0:2 (63:7, 5:7) | dettagli | 20.09.2022 |
| Australia: M25 Darwin - Doubles - Main |
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| 1/8-finals | Braithwaite T./Oster S. | Jin J./Pham D. | 1:2 (67:7, 6:1, 7:10) | dettagli | 13.09.2022 |
World: UTR Pro Match Series - Singles - Main