| UTR Pro Tennis Series - Nevada | 2021/06/23 18:00 | Nick Lagaev v Michael Redlicki | 1-6,6-4,0-0 |
| UTR Pro Tennis Series - Nevada | 2021/06/22 15:00 | Nick Lagaev v Bjorn Swenson | 2-6,4-6 |
| ITF - Pittsburgh M15 | 2019/07/03 15:40 | Nick Lagaev v Dragos Constantin Ignat | 1-6,1-6 |
| ITF - Pittsburgh M15 | 2019/07/02 14:00 | Yang Liu v Nick Lagaev | 4-6,5-7 |
| ITF - Pittsburgh M15 | 2019/07/01 14:00 | Nick Lagaev v Shane Monroe | 6-4,2-6,10-5 |
| ITF - Rochester M15 | 2019/06/24 17:00 | Nick Lagaev v Jordan Parker | 3-6,2-6 |
| ITF USA F33 | 2018/11/17 15:00 | Nick Lagaev v Alex Kobelt | 4-6,3-6 |
| ITF Canada F7 | 2018/09/11 21:20 | Junior Alexander Ore v Nick Lagaev | 6-2,6-3 |
| UTR Pro Tennis Series - Nevada | 2021/06/23 18:00 | Mac Kiger v Jonas Maier | 6-3,6-7,4-6 |
| UTR Pro Tennis Series - Nevada | 2021/06/21 15:00 | Bjorn Swenson v Jonas Maier | 6-4,6-4 |
| ITF - Kouvola M15 | 2021/05/26 13:30 | Jonas Maier v Joao Victor C Loureiro | 4-6,3-6 |
| ITF - Kouvola M15 | 2021/05/25 09:10 | Jonas Maier v Oskar Stumpf | 6-3,6-0 |
| ITF - Troisdorf M15 | 2021/05/11 11:05 | Jonas Maier v Timo Stodder | 2-6,1-6 |
| ITF - Troisdorf M15 | 2021/05/10 11:00 | Buvaysar Gadamauri v Jonas Maier | 5-7,6-4,4-10 |
| ITF - Troisdorf M15 | 2021/05/09 10:00 | Jonas Maier v Stefan Loncar | 6-2,3-6,10-8 |
| ITF - Monastir M15 | 2021/04/12 08:00 | Jonas Maier v Amaury Raynel | 4-6,2-6 |