| TT Star Series | 07/08 07:53 | - | William Koehl v Jakub Goldir | W | 3-1 | |
| TT Star Series | 07/08 06:30 | - | William Koehl v Khai Noah Lam | W | 3-0 | |
| TT Star Series | 07/07 11:37 | - | William Koehl v Benjamin Fruchart | L | 1-3 | |
| TT Star Series | 07/07 10:00 | - |
William Koehl v
Ondrej Kveton
|
L | 1-3 | |
| TT Star Series | 07/07 08:00 | - | William Koehl v Michael Fuchs | W | 3-1 | |
| TT Star Series | 07/07 06:00 | - | William Koehl v Aleksi Rasanen | W | 3-1 | |
| 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 |
|
|
| 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 | |
| TT Star Series | 06/06 11:40 | - | William Koehl v Nazar Tretiak | W | 3-2 | |
| TT Star Series | 06/06 09:21 | - | William Koehl v Shayan Siraj | W | 3-2 | |
| TT Star Series | 06/06 08:00 | - | William Koehl v Oleh Rehotun | W | 3-0 | |
| TT Star Series | 06/06 06:00 | - | William Koehl v Benjamin Fruchart | L | 0-3 | |
| Challenger Series TT | 06/03 08:15 | 2 | Dr Sam Bio Hawk Women v William Koehl | - | Cancelled | |
| Challenger Series TT | 06/03 07:30 | - | William Koehl v Matthias Danzer | L | 0-3 | |
| Challenger Series TT | 06/02 16:00 | - | William Koehl v Aliafsar Yunusov | W | 3-1 | |
| Challenger Series TT | 06/02 14:30 | - | William Koehl v Siddharta Almeida | W | 3-1 | |
| Challenger Series TT | 06/02 13:30 | - | William Koehl v Bo Hyun Ki | L | 1-3 | |
| Challenger Series TT | 06/02 10:30 | - | William Koehl v Viktor Yefimov | W | 3-2 | |
| Challenger Series TT | 06/02 08:30 | - | William Koehl v Florian Bluhm | L | 0-3 | |
| Challenger Series TT | 06/02 06:30 | - |
William Koehl v
Rafael Turrini
|
L | 0-3 |