Stadium: Grand Stand 4 Round: 25 Ground: Clay
| ITF Italy F13 | 2018/06/04 07:30 | Francesco Ferrari v Siimar, Mattias | 6-4,6-1 |
| ITF Italy F13 | 2018/06/03 08:00 | Siim Troost v Siimar, Mattias | 7-5,6-4 |
| ITF Italy F13 | 2018/06/02 07:30 | Dagnino, Paolo v Siimar, Mattias | 3-6,6-3,4-6 |
| ITF Finland F3 | 2017/08/15 10:10 | Niklas-Salminen, Patrick v Siimar, Mattias | 6-4,7-6 |
| ITF Finland F1 | 2017/08/03 11:40 | Siimar, Mattias v Gelhardt, Luca | 6-4,1-6,6-7 |
| ITF Finland F1 | 2017/08/02 10:00 | Siimar, Mattias v Pollanen, Aaro | 6-4,6-2 |
| ITF Finland F1 | 2017/07/31 07:00 | Alexander Vasilenko v Siimar, Mattias | 3-6,6-2,4-6 |
| ITF Estonia F1 | 2017/07/25 13:50 | Siimar, Mattias v Lazdins, Arturs | 1-6,2-6 |
| ITF Italy F13 | 2018/06/04 07:30 | Manuel Mazza v Giovanni Oradini | 1-6,6-4,6-3 |
| ITF Italy F13 | 2018/06/03 08:00 | Matthew Dellavedova v Manuel Mazza | 2-6,2-6 |
| ITF Italy F13 | 2018/06/02 07:30 | Kerschbaumer, Michael v Manuel Mazza | 2-6,2-6 |
| ITF Italy F36 | 2017/10/31 13:00 | Loccisano, Mike v Manuel Mazza | 7-5,6-1 |
| ITF Italy F36 Qual | 2017/10/30 13:00 | Borroni, Andrea v Manuel Mazza | 4-6,3-6 |
| ITF Italy F35 Qual | 2017/10/22 13:00 | Manuel Mazza v de Rossi, Marco | 0-6,2-6 |
| ITF Italy F35 Qual | 2017/10/21 12:00 | Negrotti, Davide v Manuel Mazza | 6-3,1-6,3-6 |
| ITF Italy F26 Qual | 2017/08/20 08:55 | Manuel Mazza v Moncagatto, Francesco | 1-6,2-6 |