| Challenger Series TT | 06/13 06:30 | - | Enio Mendes v William Koehl | L | 3-0 | |
| Challenger Series TT | 06/12 16:30 | - | Marius Henninger v William Koehl | L | 3-1 | |
| Challenger Series TT | 06/12 15:00 | - | Dennis Klein v William Koehl | L | 3-0 | |
| Challenger Series TT | 06/12 13:30 | - | William Koehl v Johannes Willeke | W | 3-1 | |
| Challenger Series TT | 06/12 11:30 | - | William Koehl v Daniel Rinderer | L | 1-3 | |
| Challenger Series TT | 06/12 10:00 | - | William Koehl v Oliver Both | W | 3-2 | |
| Challenger Series TT | 06/12 08:00 | - | Damian Zech v William Koehl | W | 0-3 | |
| TT Star Series | 06/07 12:30 | - | Benjamin Fruchart v William Koehl | L | 3-0 | |
| TT Star Series | 06/07 11:15 | - | William Koehl v Mihai Rosca | W | 3-1 | |
| TT Star Series | 06/07 10:12 | - | William Koehl v Mihai Rosca | D |
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| TT Star Series | 06/07 07:49 | - | William Koehl v Daniel Kostal | W | 3-1 | |
| TT Star Series | 06/07 06:30 | - | William Koehl v Aleksi Rasanen | W | 3-1 |