 Netherlands: M15 Alkmaar - Doubles - Main |
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| 1/8-finals | Donders D./Pontjodikromo S. | Alimli M./Schaer R. | 2:1 (6:2, 5:7, 10:6) | details | 25.06.2024 |
 France: M25 Villeneuve-Loubet+H - Doubles - Main |
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| 1/8-finals | Genov A./Pujol Navarro B. | Mouret H./Schaer R. | 2:0 (6:1, 6:3) | details | 11.06.2024 |
 Switzerland: M25 Klosters - Doubles - Main |
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| 1/8-finals | Schaer R./Sebesta J. | Burdet A./Bybel N. | 0:2 (3:6, 5:7) | details | 04.07.2023 |
 Tunisia: M15 Monastir 39 - Doubles - Main |
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| 1/8-finals | Li M./Sun Qian | Schaer R./Trochu P. | 2:0 (6:0, 6:2) | details | 04.10.2022 |
| Switzerland: M25 Muttenz - Doubles - Main |
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| 1/8-finals | Moundir A./Yang J. | Schaer R./Sebesta J. | 2:0 (7:5, 6:2) | details | 16.08.2022 |
 Italy: M15 Aprilia - Doubles - Main |
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| Quarter-finals | Baiant R./Schaer R. | Bilardo J./Sciahbasi L. | 1:2 (6:4, 3:6, 7:10) | details | 14.07.2022 |
| 1/8-finals | Miceli M./Vilardo F. | Baiant R./Schaer R. | 1:2 (6:3, 2:6, 5:10) | details | 13.07.2022 |
 Greece: M15 Heraklion 7 - Doubles - Main |
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| Quarter-finals | Handel T./Schaer R. | Tsitsipas Pa./Tsitsipas Pe. | WO. | details | 18.11.2021 |
| 1/8-finals | Friberg K./Park U. | Handel T./Schaer R. | 1:2 (6:3, 3:6, 3:10) | details | 16.11.2021 |
| Greece: M15 Heraklion 6 - Doubles - Main |
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| 1/8-finals | Deckers A./Houkes M. | Quayle D./Schaer R. | 2:1 (64:7, 6:3, 10:3) | details | 09.11.2021 |
 Estonia: M15 Parnu 2 - Doubles - Main |
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| 1/8-finals | Schaer R./Stepanov T. | Ivanov V./Raisma K. | 0:2 (2:6, 1:6) | details | 26.10.2021 |
| Switzerland: M25 Caslano - Doubles - Main |
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| Semi-finals | Schaer R./Yunis F. | Vance J./Vance J. | 0:2 (5:7, 4:6) | details | 27.08.2021 |
| Quarter-finals | Schaer R./Yunis F. | Reyes N. A./Schuetze C. | 2:0 (7:5, 6:2) | details | 26.08.2021 |
| 1/8-finals | Schaer R./Yunis F. | Kuehne C./Stepanov T. | 2:0 (7:5, 7:5) | details | 24.08.2021 |
| Switzerland: M25 Muttenz - Doubles - Main |
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| Quarter-finals | Schaer R./Sebesta J. | Alves M./Gutierrez O. J. | 0:2 (1:6, 4:6) | details | 19.08.2021 |
| 1/8-finals | Kym J./Steinegger Y. | Schaer R./Sebesta J. | 1:2 (6:2, 3:6, 11:13) | details | 17.08.2021 |
| Tunisia: M15 Monastir 3 - Doubles - Main |
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| 1/8-finals | Crawford O./Wessels L. | Schaer R./Teboul L. | 2:0 (6:3, 7:5) | details | 03.02.2021 |
Spain: M15 Melilla - Singles - Main
Kuwait: M15 Zahra 3 - Singles - Main