Stadium: Ochsenhausen, Germany
| Challenger Series TT | 2023/06/26 07:10 | Makoto Nogami v Sven Happek | L | 3-1 |
| Challenger Series TT | 2023/04/17 17:10 | Sven Happek v Makoto Nogami | L | 1-3 |
| Challenger Series TT | 2023/03/13 18:10 | Sven Happek v Makoto Nogami | W | 3-2 |
| Challenger Series TT | 2023/01/12 13:30 | Sven Happek v Makoto Nogami | W | 3-0 |
| Challenger Series TT | 2022/12/12 17:30 | Makoto Nogami v Sven Happek | W | 0-3 |
| Challenger Ochsenhausen | 2022/07/18 09:50 | Sven Happek v Makoto Nogami | L | 1-3 |
| Challenger Series TT | 2024/02/05 13:20 | Sven Happek v Damian Zech | W | 3-2 |
| Challenger Series TT | 2024/02/05 09:50 | Kirill Fadeev v Sven Happek | L | 3-0 |
| Challenger Series TT | 2024/02/05 07:55 | Sven Happek v Dauud Cheaib | L | 1-3 |
| Challenger Series TT | 2024/01/30 08:50 | Marius Henninger v Sven Happek | L | 3-0 |
| Challenger Series TT | 2024/01/29 20:50 | Alberto Lillo v Sven Happek | L | 3-0 |
| Challenger Series TT | 2024/01/29 18:50 | Adrien Coton v Sven Happek | W | 2-3 |
| Challenger Series TT | 2024/01/29 16:50 | Sven Happek v Dennis Klein | L | 0-3 |
| Challenger Series TT | 2024/01/29 14:10 | Sven Happek v Dauud Cheaib | L | 0-3 |
| Challenger Series TT | 2024/02/05 12:25 | Kirill Fadeev v Makoto Nogami | L | 3-0 |
| Challenger Series TT | 2024/02/05 10:35 | Makoto Nogami v Dauud Cheaib | L | 1-3 |
| Challenger Series TT | 2024/02/05 08:40 | Makoto Nogami v Aljaz Godec | W | 3-0 |
| Challenger Series TT | 2024/01/12 13:50 | Makoto Nogami v Jeromy Loffler | L | 0-3 |
| Challenger Series TT | 2024/01/12 12:25 | Mike Hollo v Makoto Nogami | L | 3-0 |
| Challenger Series TT | 2024/01/12 10:10 | Makoto Nogami v Jeromy Loffler | L | 1-3 |
| Challenger Series TT | 2024/01/11 20:50 | Makoto Nogami v Tom Colvin | W | 3-0 |
| Challenger Series TT | 2024/01/11 18:10 | Makoto Nogami v Michael Engelhardt | L | 1-3 |