Stadium: Court 7 Round: 54 Ground: Hardcourt outdoor
| ITF M15 Helsinki | 2019/08/19 11:45 | Terczynski, Mateusz v Tiainen, Hermanni | 6-2,6-2 |
| Bydgoszcz, Singles Qualifying M-ITF-POL-04A | 2019/08/13 10:00 | Diarra, Gibril v Terczynski, Mateusz | 6-2,6-4 |
| Bydgoszcz, Singles Qualifying M-ITF-POL-04A | 2019/08/12 08:00 | Ambrozy, Filip v Terczynski, Mateusz | 4-6,3-6 |
| Koszalin, Singles Qualifying M-ITF-POL-02A | 2019/08/08 09:00 | Terczynski, Mateusz v David Poljak | 1-6,6-7 |
| Koszalin, Singles Qualifying M-ITF-POL-02A | 2019/08/06 14:00 | Terczynski, Mateusz v Szic, Sandro | 6-0,6-1 |
| ITF M15 Vilnius | 2019/07/09 08:45 | Solberg, Christoffer v Terczynski, Mateusz | 6-1,3-6,10-5 |
| ITF M15 Vilnius | 2019/07/08 07:00 | Terczynski, Mateusz v Grinvalds, Roberts | 7-6,6-2 |
| ITF M15 Wroclaw | 2019/07/02 08:00 | Terczynski, Mateusz v Soderlund, Carl | 3-6,4-6 |
| ITF M15 Helsinki | 2019/08/19 12:40 | Sillanpaa, Pauli v Ahti, Ville-Petteri | 1-6,1-6 |
| ITF M15 Parnu | 2019/07/15 11:30 | Uvarov, Andrey v Ahti, Ville-Petteri | 6-2,4-6,10-8 |
| ITF Estonia F3 | 2018/11/05 10:30 | Ahti, Ville-Petteri v Otto Virtanen | 4-6,3-6 |
| ITF Estonia F3 | 2018/11/04 09:00 | Myagkov, Dmitry v Ahti, Ville-Petteri | 2-6,2-6 |
| ITF Estonia F3 | 2018/11/03 08:00 | Saatela, Leevi v Ahti, Ville-Petteri | 3-6,2-6 |
| ITF Estonia F2 | 2018/10/29 11:20 | Martins Rocens v Ahti, Ville-Petteri | 6-4,6-2 |
| ITF Estonia F2 | 2018/10/28 09:00 | Ahti, Ville-Petteri v Shrolik, Igor | 3-6,0-6 |
| ITF Finland F2 | 2018/08/06 09:55 | Ahti, Ville-Petteri v Karl Friberg | 0-6,4-6 |