| Challenger Series TT | 2024/04/08 08:15 | Sven Happek v Mike Hollo | L | 2-3 |
| Challenger Series TT | 2024/03/21 09:15 | Mike Hollo v Sven Happek | L | 3-0 |
| Challenger Series TT | 2024/03/11 14:10 | Sven Happek v Mike Hollo | L | 0-3 |
| Challenger Series TT | 2023/12/08 10:10 | Mike Hollo v Sven Happek | L | 3-1 |
| Challenger Series TT | 2023/10/09 14:30 | Mike Hollo v Sven Happek | L | 3-1 |
| Challenger Series TT | 2024/05/06 08:15 | Sven Happek v Dennis Klein | L | 0-3 |
| Challenger Series TT | 2024/04/23 08:15 | Antoni Landreau v Sven Happek | L | 3-2 |
| Challenger Series TT | 2024/04/23 07:05 | Sven Happek v Eusebio Vos | L | 1-3 |
| Challenger Series TT | 2024/04/22 15:50 | Alexander Valuch v Sven Happek | L | 3-0 |
| Challenger Series TT | 2024/04/22 14:05 | Joon Shim v Sven Happek | L | 3-0 |
| Challenger Series TT | 2024/04/22 12:20 | Sven Happek v Makoto Nogami | W | 3-1 |
| Challenger Series TT | 2024/04/22 10:00 | Sven Happek v Benjamin Fruchart | L | 0-3 |
| Challenger Series TT | 2024/04/15 07:40 | Sven Happek v Jeromy Loffler | L | 1-3 |
| Challenger Series TT | 2024/05/06 07:40 | Marius Henninger v Mike Hollo | W | 2-3 |
| Challenger Series TT | 2024/04/26 12:10 | Mike Hollo v Albert Vilardell | L | 2-3 |
| Challenger Series TT | 2024/04/26 10:45 | Benjamin Fruchart v Mike Hollo | L | 3-0 |
| Challenger Series TT | 2024/04/26 10:00 | Kirill Fadeev v Mike Hollo | W | 1-3 |
| Challenger Series TT | 2024/04/26 06:30 | Bohdan Sinkevych v Mike Hollo | W | 0-3 |
| Challenger Series TT | 2024/04/25 17:50 | Mike Hollo v Dennis Klein | W | 3-1 |
| Challenger Series TT | 2024/04/25 14:55 | Mike Hollo v Albert Vilardell | L | 2-3 |
| Challenger Series TT | 2024/04/25 13:10 | Benjamin Fruchart v Mike Hollo | L | 3-0 |