Stadium: Court 2 Indoor Round: 44 Ground: Clay
| ITF M15 Bucharest | 2021/05/23 08:30 | Nikolas Lahky v Filippo Speziali | 3-6,3-6 |
| ITF M15 Sibenik | 2021/04/18 08:00 | Nikolas Lahky v Mayeul Darras | 5-7,7-6,4-10 |
| ITF M15 Opatija | 2021/03/21 08:00 | Aleksandre Bakshi v Nikolas Lahky | 7-6,6-2 |
| ITF M15 Rovinj | 2021/03/15 08:00 | Ignacio Monzon v Nikolas Lahky | 6-1,6-4 |
| ITF M15 Bratislava | 2021/03/08 12:00 | Milos Karol v Nikolas Lahky | 6-3,6-2 |
| ITF M15 Bratislava | 2021/03/01 12:00 | Nikolas Lahky v Maurus Malgiaritta | 4-6,2-6 |
| ITF M15 Bratislava | 2020/11/23 12:00 | Martin Dobry v Nikolas Lahky | 3-6,6-1,10-5 |
| ITF M25 Pardubice | 2020/09/27 10:30 | Sergo Sikharulidze v Nikolas Lahky | 6-4,1-6,12-10 |
| ITF M15 Brcko | 2021/05/16 09:30 | Dusan Obradovic v Petar Pjevcevic | 6-4,6-0 |
| Eastern European Championship | 2020/12/29 12:30 | Luka Pavlovic v Petar Pjevcevic | 6-4,7-5 |
| Eastern European Championship | 2020/12/28 14:15 | Duje Kekez v Petar Pjevcevic | 7-6,6-2 |
| Eastern European Championship | 2020/12/27 12:30 | Marat Deviatiarov v Petar Pjevcevic | 6-3,7-5 |
| Eastern European Championship | 2020/12/25 14:25 | Paul Valsecchi v Petar Pjevcevic | 2-6,4-6 |
| Eastern European Championship | 2020/12/24 11:30 | Tomislav Jotovski v Petar Pjevcevic | 6-4,4-6,3-6 |
| Eastern European Championship | 2020/12/23 14:10 | Goran Markovic v Petar Pjevcevic | 3-6,3-6 |
| Eastern European Championship | 2020/12/21 08:00 | Gorazd Srbljak v Petar Pjevcevic | 6-1,6-3 |