Stadium: Court 1 Round: 26 Ground: Hardcourt outdoor
| ITF M15 Vaasa | 2023/06/07 12:45 | Johannes Haerteis v Iiro Vasa | 4-6,1-6 |
| ITF M15 Helsinki | 2022/08/12 07:00 | Filip Peliwo v Iiro Vasa | 6-4,7-6 |
| ITF M15 Helsinki | 2022/08/11 10:00 | Iiro Vasa v Edison Ambarzumjan | 6-3,6-4 |
| ITF M15 Helsinki | 2022/08/10 13:50 | Max Cunat v Iiro Vasa | 6-4,3-6,3-6 |
| ITF M15 Parnu | 2022/08/03 09:10 | Robin Erik Parts v Iiro Vasa | 2-6,7-6,6-3 |
| ITF M15 Vejle | 2022/07/28 10:05 | Sandro Kopp v Iiro Vasa | 6-0,6-4 |
| ITF M15 Vejle | 2022/07/27 11:50 | Iiro Vasa v Jack Karlsson Winstrand | 6-2,6-3 |
| ITF M15 Vejle | 2022/07/25 17:55 | Iiro Vasa v Richard Biagiotti | 6-3,5-7,11-9 |
| 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 M15 Vaasa | 2022/06/01 14:55 | Oskar Antinheimo v Luca Castelnuovo | 1-6,2-6 |
| ITF M15 Vaasa | 2022/05/31 08:30 | Oskar Antinheimo v Luca Teboul | 6-1,6-1 |