| Island international - Herredouble | 2020/01/24 15:40 | Lahtinen/Overmark v Ellertsson/Hognason | W | 2-1 |
| Estonian International - Herredouble | 2020/01/10 12:10 | Lahtinen/Overmark v Corvee/Villeger | L | 0-2 |
| Slovenien - Future Series - Herredouble - Kvalifikation | 2019/11/21 20:15 | Alic/Poboljsaj v Lahtinen/Overmark | W | 0-2 |
| Slovenien - Future Series - Herredouble - Kvalifikation | 2019/11/21 14:25 | Lahtinen/Overmark v Monroy/Piris | W | 2-0 |
| Lithuanian International - Herredouble | 2019/06/07 14:10 | Lahtinen/Overmark v Duijs/Wassink | L | 1-2 |
| Finnish Open MD Qual | 2019/04/04 15:00 | Lahtinen/Overmark v Leydon-Davis/Manota | L | 0-2 |