Stadium: Ochsenhausen, Germany Round: 2
| Challenger Series TT | 2024/07/01 12:30 | Johannes Willeke v Sven Happek | W | 1-3 |
| Challenger Series TT | 2023/06/22 17:10 | Sven Happek v Johannes Willeke | L | 2-3 |
| Challenger Series TT | 2023/06/19 12:30 | Sven Happek v Johannes Willeke | W | 3-1 |
| Challenger Series TT | 2024/07/02 07:30 | Sven Happek v Mykhailo Mosiuk | W | 3-2 |
| Challenger Series TT | 2024/07/01 16:30 | Sven Happek v Armin Alicic | W | 3-0 |
| Challenger Series TT | 2024/07/01 14:30 | Sven Happek v Minsu Kim | W | 3-2 |
| Challenger Series TT | 2024/07/01 12:30 | Johannes Willeke v Sven Happek | W | 1-3 |
| Challenger Series TT | 2024/07/01 10:30 | Woobeen Jeong v Sven Happek | W | 0-3 |
| Challenger Series TT | 2024/07/01 09:00 | Sven Happek v Matias Danzer | L | 1-3 |
| Challenger Series TT | 2024/07/01 07:30 | Sven Happek v Francesco Maragioglio | W | 3-0 |
| Challenger Series TT | 2024/06/28 06:30 | Guillaume Alcayde v Sven Happek | L | 3-2 |
| Challenger Series TT | 2024/07/02 06:30 | Johannes Willeke v Armin Alicic | L | 2-3 |
| Challenger Series TT | 2024/07/01 16:00 | Johannes Willeke v Mykhailo Mosiuk | W | 3-2 |
| Challenger Series TT | 2024/07/01 12:30 | Johannes Willeke v Sven Happek | L | 1-3 |
| Challenger Series TT | 2024/07/01 11:00 | Johannes Willeke v Minsu Kim | L | 0-3 |
| Challenger Series TT | 2024/07/01 08:30 | Woobeen Jeong v Johannes Willeke | W | 1-3 |
| Challenger Series TT | 2024/07/01 07:00 | Johannes Willeke v Matias Danzer | W | 3-1 |
| Challenger Series TT | 2023/11/28 09:30 | Kirill Fadeev v Johannes Willeke | L | 3-1 |
| Challenger Series TT | 2023/11/28 08:10 | Johannes Willeke v Armin Alicic | L | 1-3 |