Stadium: Court 6 Round: 25 Ground: Hardcourt outdoor
| ITF M25 Santo Domingo | 2023/06/27 15:30 | Bernard Tomic v Seita Watanabe | 6-4,6-3 |
| ITF M15 Santo Domingo | 2023/06/21 13:30 | Tauheed Browning v Seita Watanabe | 7-6,0-6,7-5 |
| ITF M15 Karuizawa | 2023/05/31 01:00 | Jumpei Yamasaki v Seita Watanabe | 6-4,6-4 |
| UTR Pro Miki | 2023/02/12 02:00 | Tomohiro Masabayashi v Seita Watanabe | 4-6,1-5 |
| UTR Pro Miki | 2023/02/11 03:30 | Yuichiro Inui v Seita Watanabe | 6-7,6-7 |
| UTR Pro Miki | 2023/02/10 04:30 | Ren Nakamura v Seita Watanabe | 5-7,2-6 |
| UTR Pro Miki | 2023/02/09 03:30 | Kosuke Shibano v Seita Watanabe | 2-6,1-6 |
| UTR Pro Miki | 2023/02/08 03:30 | Ryohei Takase v Seita Watanabe | 2-6,1-5 |
| ITF M15 Monastir | 2023/06/29 08:30 | Cyril Vandermeersch v Loann Massard | 6-7,1-6 |
| ITF M15 Monastir | 2023/06/27 08:30 | Cyril Vandermeersch v Wissam Abderrahman | 6-3,5-7,6-3 |
| ITF M15 Monastir | 2023/06/22 08:30 | Luca Giacomini v Cyril Vandermeersch | 6-2,6-3 |
| ITF M15 Monastir | 2023/06/21 13:00 | Siim Troost v Cyril Vandermeersch | 3-6,5-7 |
| ITF M15 Monastir | 2023/06/14 10:20 | Nicolas Tepmahc v Cyril Vandermeersch | 6-3,6-1 |
| ITF M15 Monastir | 2022/11/29 08:30 | Adrian Oetzbach v Cyril Vandermeersch | 2-6,6-4,7-5 |
| ITF M15 Monastir | 2022/11/22 08:00 | Tiago Pereira v Cyril Vandermeersch | 6-4,6-3 |
| ITF M15 Al Zahra | 2022/10/27 09:45 | William Jansen v Cyril Vandermeersch | 7-6,6-2 |