Stadium: Court 3 Round: 54 Ground: Clay
| Challenger - Helsingi | 2022/11/13 13:25 | Otso Martikainen v Raphael Collignon | 0-6,0-6 |
| ITF M15 Vaasa | 2022/06/01 07:00 | Iiro Vasa v Otso Martikainen | 6-2,7-5 |
| ITF M15 Vaasa | 2022/05/31 07:00 | Leevi Saatela v Otso Martikainen | 6-3,6-3 |
| ITF M15 Vaasa | 2022/05/30 07:00 | Otso Martikainen v Mateusz Kulakowski | 6-1,6-3 |
| ITF M15 Vejle | 2023/07/26 07:00 | Oskar Jansson v Luigi Sorrentino | 3-6,1-6 |
| ITF M15 Vejle | 2023/07/25 07:00 | Oskar Jansson v Henrik Heise Korsgaard | 1-6,6-4,10-6 |
| ITF M15 Vejle | 2023/07/24 09:30 | Oskar Jansson v Emil Chr E Mikkelsen | 6-2,6-3 |
| ITF M25 Kassel | 2023/07/10 08:00 | Vincent Marysko v Oskar Jansson | 4-6,6-4,10-8 |
| ITF M25 The Hague | 2023/07/05 17:10 | Collin Altamirano v Oskar Jansson | 6-2,6-4 |
| ITF M25 The Hague | 2023/07/03 13:55 | Oskar Jansson v David Quayle | 6-1,6-2 |
| ITF M25 The Hague | 2023/07/02 10:30 | Oskar Jansson v Miko Wassermann | 7-6,6-1 |
| ITF M15 Kalmar | 2023/05/19 10:25 | Oskar Jansson v Lucas Catarina | 6-7,6-7 |