| UTR Pro - Easton | 2023/04/07 13:00 | Yujiro Onuma v Richard Bloomfield | 7-6,6-4 |
| UTR Pro - Easton | 2023/04/06 08:30 | Matthew Doe v Yujiro Onuma | 1-6,1-5 |
| UTR Pro - Easton | 2023/04/05 12:00 | Marcus Walters v Yujiro Onuma | 6-3,6-3 |
| UTR Pro - Easton | 2023/04/03 10:00 | Sahej Maker v Yujiro Onuma | 6-4,4-6,1-6 |
| UTR Pro - Easton | 2023/04/02 08:30 | Yujiro Onuma v Aziz Kijametovic | 3-6,6-3,0-6 |
| ITF - Monastir M15 | 2023/03/27 12:30 | Michal Mikula v Yujiro Onuma | 6-1,6-3 |
| ITF - Monastir M15 | 2023/03/27 08:30 | David Agung Susanto v Yujiro Onuma | 2-6,7-5,9-11 |
| ITF - Monastir M15 | 2023/03/20 08:00 | Tom Evans v Yujiro Onuma | 6-2,7-6 |
| UTR Pro - Easton | 2023/04/06 10:00 | Alexander Okonkwo v Ali Habib | 5-7,6-2,6-3 |
| UTR Pro - Easton | 2023/04/05 07:00 | Alexander Okonkwo v Michael Shaw | 5-7,6-0,2-6 |
| UTR Pro - Easton | 2023/04/04 11:30 | David Quayle v Alexander Okonkwo | 6-4,6-0 |
| UTR Pro - Easton | 2023/04/03 08:30 | Hien Q H Pham v Alexander Okonkwo | 6-7,3-6 |
| UTR Pro Cardiff | 2023/02/26 10:30 | William Mclennaghan v Alexander Okonkwo | 7-6,6-3 |
| UTR Pro Cardiff | 2023/02/25 08:00 | Alexander Okonkwo v Robert Beznea | 6-0,6-1 |
| UTR Pro Cardiff | 2023/02/24 08:00 | Alexander Okonkwo v Adam Kresina | 6-3,5-1 |
| UTR Pro Cardiff | 2023/02/23 11:00 | Alexander Okonkwo v Ed Pudney | 1-6,6-3,6-7 |