Round: 54 Ground: Clay
| ITF Estonia F1 | 2015/07/26 07:00 | Herkko Pollanen v Mika Kosonen | 6-2,6-4 |
| ITF Turkey F14 | 2015/04/04 06:30 | Mika Kosonen v Polat Gulcur | 6-4,6-2 |
| ITF Turkey F13 | 2015/03/29 06:30 | Nils Brinkmann v Mika Kosonen | 6-2,6-2 |
| ITF Estonia F3 | 2014/10/27 14:30 | Mika Kosonen v Kristjan Tamm | 6-3,5-7,3-6 |
| ITF Estonia F3 | 2014/10/26 08:00 | Mika Kosonen v Ville-Petteri Ahti | 7-5,6-7,6-4 |
| ITF Finland F1 Qual | 2014/08/02 09:30 | Mika Kosonen v Sami Huurinainen | 6-7,2-6 |