Estadio: Ochsenhausen, Germany
| Challenger Series TT | 2023/01/24 07:30 | Sven Happek v Enio Mendes | L | 0-3 |
| Challenger de Ochsenhausen | 2018/11/28 12:10 | Enio Mendes v Sven Happek | L | 3-0 |
| Challenger de Ochsenhausen | 2017/10/18 10:30 | Sven Happek v Enio Mendes | L | 0-3 |
| Challenger de Ochsenhausen | 2017/07/13 10:30 | Sven Happek v Enio Mendes | L | 1-3 |
| Challenger Series TT | 2023/06/15 09:10 | Norbert Tauler v Sven Happek | L | 3-1 |
| Challenger Series TT | 2023/06/15 07:10 | Sven Happek v Liang Qiu | L | 2-3 |
| Challenger Series TT | 2023/05/23 09:10 | Sven Happek v Albert Vilardell | L | 1-3 |
| Challenger Series TT | 2023/05/22 19:50 | Sven Happek v Aljaz Godec | L | 0-3 |
| Challenger Series TT | 2023/05/22 17:10 | Sven Happek v Kirill Fadeev | L | 1-3 |
| Challenger Series TT | 2023/05/22 14:30 | Michael Engelhardt v Sven Happek | L | 3-1 |
| Challenger Series TT | 2023/05/22 11:50 | Jeromy Loffler v Sven Happek | W | 0-3 |
| Challenger Series TT | 2023/05/22 09:50 | Sven Happek v Damian Zech | L | 0-3 |
| Challenger Series TT | 2023/06/15 15:10 | Norbert Tauler v Enio Mendes | L | 3-2 |
| Challenger Series TT | 2023/06/15 13:10 | Enio Mendes v Liang Qiu | W | 3-2 |
| Challenger Series TT | 2023/06/15 10:30 | Enio Mendes v Dauud Cheaib | W | 3-2 |
| Challenger Series TT | 2023/06/15 08:30 | Enio Mendes v Zengyi Wang | W | 3-2 |
| TT Star Series | 2023/06/08 10:45 | Enio Mendes v Filip Zeljko | W | 3-2 |
| TT Star Series | 2023/06/08 09:15 | Enio Mendes v Nandor Ecseki | W | 3-2 |
| TT Star Series | 2023/06/08 07:45 | Enio Mendes v Amirreza Abbasi | L | 1-3 |
| TT Star Series | 2023/06/07 12:15 | Elias Ranefur v Enio Mendes | L | 3-1 |