Stadium: Court 10 Round: 25 Ground: Clay
| Challenger Tampere | 2018/07/21 07:00 | Matias Franco Descotte v Eero Vasa | 6-4,6-4 |
| ITF Estonia F1 | 2018/07/16 07:00 | Eero Vasa v Ruzgas, Marius | 6-4,7-5 |
| ITF Estonia F1 | 2018/07/16 07:00 | Besada, Santiago v Eero Vasa | 6-4,6-1 |
| ITF Estonia F1 | 2018/07/14 10:00 | Eero Vasa v Taylor, Sam | 3-6,6-1,6-4 |
| ITF Spain F15 Qual | 2018/06/10 11:30 | Eero Vasa v Le Gal Perez, Diego | 3-6,5-7 |
| ITF Spain F15 Qual | 2018/06/09 16:00 | Franck, Axel v Eero Vasa | 3-6,3-6 |
| Coupe Davis | 2017/04/07 14:55 | Eero Vasa v Rakotondramanga, Antso | 6-4,3-6,2-6,0-6 |
| Coupe Davis | 2017/02/03 09:00 | Nikoloz Basilashvili v Eero Vasa | 2-6,6-1,6-4,6-1 |
| ITF Finland F1 Qual | 2018/07/29 07:00 | Hough, David v Kosonen, Mika | 6-7,3-6 |
| ITF Finland F1 Qual | 2018/07/28 07:00 | Roberto, Riccardo v Kosonen, Mika | 6-7,3-6 |
| ITF Finland F3 Qual | 2016/08/13 22:00 | Mcdaniels, Mitchell Thomas v Kosonen, Mika | 6-2,6-7,6-3 |
| ITF Finland F3 Qual | 2016/08/12 22:00 | Tuomi, Verneri v Kosonen, Mika | 1-6,3-6 |
| ITF Finland F2 | 2016/08/09 12:55 | Jonathan Mridha v Kosonen, Mika | 6-3,6-4 |
| ITF Finland F2 Qual | 2016/08/07 11:30 | Bruna, Esteban v Kosonen, Mika | 5-7,5-7 |
| ITF Estonia F1 | 2016/07/24 22:00 | Sillanpaa, Henrik v Kosonen, Mika | 3-6,6-3,6-3 |
| ITF Estonia F1 | 2016/07/23 22:00 | Kosonen, Mika v Krolik, Patryk | 6-1,0-6,7-6 |