Stadium: Center Court Round: 29 Ground: Clay
| ITF M15 Belgrade | 2023/06/29 06:50 | Denis Klok v Ergi Kirkin | 6-7,3-6 |
| ITF M15 Belgrade | 2023/06/28 07:00 | Edoardo Zanada v Ergi Kirkin | 6-7,6-7 |
| ITF M25 Risskov/Aarhus | 2023/06/17 11:40 | Ergi Kirkin v Elmer Moller | 5-7,4-6 |
| ITF M25 Risskov/Aarhus | 2023/06/16 10:00 | Ergi Kirkin v Christian Sigsgaard | 6-7,6-3,6-4 |
| ITF M25 Risskov/Aarhus | 2023/06/15 10:00 | Ergi Kirkin v Jonathan Mridha | 4-6,7-6,6-0 |
| ITF M25 Risskov/Aarhus | 2023/06/14 08:30 | Ergi Kirkin v Nicolas Kobelt | 7-6,6-2 |
| ITF M25 Skopje | 2023/06/10 12:40 | Ergi Kirkin v Kalin Ivanovski | 6-3,2-6,2-6 |
| ITF M25 Skopje | 2023/06/09 09:30 | Miljan Zekic v Ergi Kirkin | 2-6,4-6 |
| ITF M25 Anseong | 2023/06/20 03:55 | Makoto Ochi v Taisei Ichikawa | 2-6,6-7 |
| ITF M25 Changwon | 2023/06/16 01:00 | Makoto Ochi v Sanhui Shin | 3-6,3-6 |
| ITF M25 Changwon | 2023/06/15 01:25 | Makoto Ochi v Duckhee Lee | 6-0,4-6,6-2 |
| ITF M25 Changwon | 2023/06/14 01:00 | Makoto Ochi v Jun Ha Hyun | 6-0,6-3 |
| ITF M25 Daegu | 2023/06/06 00:50 | Takuya Kumasaka v Makoto Ochi | 6-3,6-1 |
| Challenger Busan | 2023/05/08 04:25 | Makoto Ochi v Hiroki Moriya | 4-6,4-6 |
| Challenger Busan | 2023/05/07 05:05 | Peter Gojowczyk v Makoto Ochi | 6-4,2-6,5-7 |
| Challenger Gwangju | 2023/04/30 05:20 | Jason Jung v Makoto Ochi | 6-4,7-6 |