Stadium: Court 3 Round: 25 Ground: Clay
| Challenger - Salzburg | 2021/07/04 11:20 | Jiri Lehecka v Lukas Neumayer | 6-3,6-2 |
| Austria - Campionatul de tenis | 2021/07/02 13:00 | Sebastian Ofner v Lukas Neumayer | 6-3,3-6,6-3 |
| ITF - M15 Monastir | 2021/06/03 10:45 | Lukas Neumayer v Yanki Erel | 6-0,4-6,1-6 |
| ITF - M15 Monastir | 2021/06/01 12:50 | Lukas Neumayer v Perry Gregg | 6-4,6-2 |
| ITF - M15 Monastir | 2021/05/28 10:50 | Uisung Park v Lukas Neumayer | 5-7,6-0,6-3 |
| ITF - M15 Monastir | 2021/05/27 10:25 | Lukas Neumayer v Moez Echargui | 6-3,4-6,6-4 |
| ITF - M15 Monastir | 2021/05/25 08:30 | Lukas Neumayer v James Edley | 6-0,6-1 |
| ITF - M15 Monastir | 2021/05/20 08:25 | Lukas Neumayer v Yunseong Chung | 1-6,4-6 |
| ITF - M25 Velenje | 2021/07/08 09:25 | Cristian Rodriguez v Pavel Nejedly | 6-3,6-3 |
| ITF - M25 Velenje | 2021/07/07 12:25 | Pavel Nejedly v Alessandro Bellifemine | 6-3,7-5 |
| ITF - M15 Bergamo | 2021/06/22 16:45 | Matteo Arnaldi v Pavel Nejedly | 6-3,7-6 |
| Challenger - Prostejov | 2021/06/14 08:30 | Alexander Erler v Pavel Nejedly | 7-5,6-3 |
| ITF - M25 Most | 2021/05/27 07:55 | Pavel Nejedly v Dalibor Svrcina | 2-6,1-6 |
| ITF - M25 Most | 2021/05/26 08:00 | Filip Duda v Pavel Nejedly | 4-6,2-6 |
| ITF M25 - Praga | 2021/05/11 08:00 | Pavel Nejedly v Patrik Rikl | 2-6,2-6 |
| ITF M25 - Praga | 2021/05/10 08:00 | Pavel Nejedly v Jiri Jenicek | 6-1,6-1 |