Stadium: Court 2 Round: 25 Ground: Hardcourt outdoor
| ITF - M15 Torello | 2022/03/01 12:30 | Mertens, Yannick v David Jorda Sanchis | 4-6,6-3,5-7 |
| ITF - M25 Vale Do Lobo | 2022/02/24 14:10 | Gabriel Decamps v Mertens, Yannick | 6-3,6-1 |
| ITF - M25 Vale Do Lobo | 2022/02/23 16:25 | Ehrat, Sandro v Mertens, Yannick | 3-6,3-6 |
| ITF - M15 Oberhaching | 2022/02/15 12:55 | Luca Van Assche v Mertens, Yannick | 6-3,7-6 |
| ITF - M15 Grenoble | 2022/02/10 10:00 | Wang, Tak Khunn v Mertens, Yannick | 6-3,6-1 |
| ITF - M15 Grenoble | 2022/02/08 12:00 | Mertens, Yannick v Breysach , Martin | 1-6,7-5,6-3 |
| ITF M25 Monastir | 2022/01/27 10:00 | Mertens, Yannick v Dan Added | 3-6,4-6 |
| ITF M25 Monastir | 2022/01/26 15:55 | Mertens, Yannick v Colin Sinclair | 6-4,6-4 |
| ITF - M25 Nottingham | 2022/04/12 09:30 | William Jansen v Daniel Little | 4-6,4-6 |
| UK Pro League | 2022/02/26 13:30 | William Jansen v Weightman, Oscar | 7-5,3-6,10-5 |
| UK Pro League | 2022/02/24 12:15 | Alexis Canter v William Jansen | 6-3,3-6,10-7 |
| UK Pro League | 2022/02/23 14:30 | Charles Broom v William Jansen | 6-3,6-1 |
| UK Pro League | 2022/02/22 14:00 | Cash, Julian v William Jansen | 6-7,7-6,10-6 |
| UK Pro League | 2022/02/20 11:00 | Jack Gibbens v William Jansen | 4-6,6-7 |
| Wimbledon, London, Great Britain | 2021/06/22 10:00 | Anton Matusevich v William Jansen | 4-6,6-0,6-4 |