Stadium: Court 1 Round: 14 Ground: Hardcourt outdoor
| Challenger Seoul | 2023/04/23 06:00 | Omar Jasika v Keisuke Saitoh | 6-4,7-6 |
| Challenger Seoul | 2023/04/24 03:45 | Omar Jasika v Tatsuma Ito | 6-1,2-6,2-6 |
| Challenger Seoul | 2023/04/23 06:00 | Omar Jasika v Keisuke Saitoh | 6-4,7-6 |
| Challenger Madrid | 2023/04/10 13:10 | Omar Jasika v Lorenzo Giustino | 4-6,6-4,2-6 |
| Challenger Murcia | 2023/04/04 16:20 | Omar Jasika v Kimmer Coppejans | 4-6,4-6 |
| Challenger Lille | 2023/03/28 11:05 | Maxime Janvier v Omar Jasika | 7-5,0-6,6-2 |
| Challenger Biel | 2023/03/21 11:55 | Omar Jasika v Maximilian Neuchrist | 4-6,4-6 |
| ITF M25 Swan Hill | 2023/03/04 01:40 | Omar Jasika v Thomas Fancutt | 4-6,7-6,5-7 |
| ITF M25 Swan Hill | 2023/03/03 02:35 | Omar Jasika v Edward Winter | 6-4,3-6,6-3 |
| Challenger Seoul | 2023/04/23 06:00 | Omar Jasika v Keisuke Saitoh | 6-4,7-6 |
| ITF M25 Kashiwa | 2023/04/04 01:00 | Keisuke Saitoh v Yusuke Takahashi | 4-6,6-3,3-6 |
| ITF M25 Tsukuba | 2023/03/28 07:55 | Tatsuma Ito v Keisuke Saitoh | 4-6,7-5,6-2 |
| ITF M25 Canberra | 2023/03/24 03:30 | Keisuke Saitoh v Tristan Schoolkate | 2-6,4-6 |
| ITF M25 Canberra | 2023/03/23 22:30 | Keisuke Saitoh v Jake Delaney | 6-4,0-6,6-4 |
| ITF M25 Canberra | 2023/03/21 00:35 | Keisuke Saitoh v Derek Pham | 6-1,7-6 |
| ITF M25 Canberra | 2023/03/14 01:05 | Keisuke Saitoh v Jeremy Jin | 5-7,2-6 |
| ITF M25 Monastir | 2023/02/20 08:30 | Keisuke Saitoh v Ioannis Xilas | 3-6,3-6 |