Estadio: Court 3 Round: 25 Ground: Clay
| ITF M15 Vaasa | 2023/06/08 09:35 | Iiro Vasa v Oskar Antinheimo | 6-1,6-4 |
| Challenger de Tampere | 2023/07/16 08:00 | Damien Wenger v Oskar Antinheimo | 6-1,6-0 |
| ITF M15 Vaasa | 2023/06/08 09:35 | Iiro Vasa v Oskar Antinheimo | 6-1,6-4 |
| ITF M15 Vaasa | 2023/06/07 17:05 | Oskar Antinheimo v Aleksi Lofman | 5-7,6-2,6-4 |
| ITF M15 Vaasa | 2023/06/06 10:00 | Johannes Seeman v Oskar Antinheimo | 6-3,3-6,8-10 |
| ITF M15 Vaasa | 2023/06/05 12:30 | Oskar Antinheimo v Jeiden Saidizand | 4-6,6-1,10-5 |
| ITF M15 Winston-Salem | 2022/11/08 17:30 | Luca Staeheli v Oskar Antinheimo | 7-5,6-2 |
| ITF M15 Winston-Salem | 2022/11/07 18:00 | Oskar Antinheimo v Victor Putter | 7-5,6-3 |
| UTR Pro Tennis Series - Winston-Salem | 2022/09/08 22:43 | Juan Lopez De Azcona Vale v Oskar Antinheimo | 6-0,6-2 |
| ITF M25 Martos | 2023/06/16 16:00 | Iiro Vasa v Pedro Vives Marcos | 7-6,3-6,2-6 |
| ITF M25 Martos | 2023/06/15 15:00 | Jaime Faria v Iiro Vasa | 3-6,6-3,5-7 |
| ITF M25 Martos | 2023/06/14 08:00 | Pablo Martinez Gomez v Iiro Vasa | 4-6,6-7 |
| ITF M25 Martos | 2023/06/13 07:30 | Iiro Vasa v Afonso Portugal | 7-5,6-0 |
| ITF M25 Martos | 2023/06/12 07:30 | Iiro Vasa v Marc Saura Moragrega | 6-1,6-2 |
| ITF M15 Vaasa | 2023/06/09 09:00 | Iiro Vasa v Jonathan Mridha | 1-6,6-7 |
| ITF M15 Vaasa | 2023/06/08 09:35 | Iiro Vasa v Oskar Antinheimo | 6-1,6-4 |
| ITF M15 Vaasa | 2023/06/07 12:45 | Johannes Haerteis v Iiro Vasa | 4-6,1-6 |