Stadium: Court 2 Round: 28 Ground: Clay
| ITF M25 Telfs | 2021/07/18 09:20 | Bogdan Ionut Apostol v Alexander Shevchenko | 4-6,6-3,13-11 |
| ITF M25 Telfs | 2021/07/16 08:50 | Bogdan Ionut Apostol v Mick Veldheer | 6-4,5-7,7-5 |
| ITF M25 Telfs | 2021/07/14 07:55 | Jeroen Vanneste v Bogdan Ionut Apostol | 2-6,3-6 |
| ITF M15 Poprad | 2021/07/06 10:20 | George Loffhagen v Bogdan Ionut Apostol | 6-3,6-1 |
| UTR Pro Tennis Series Bukurešť | 2021/05/23 07:40 | Bogdan Ionut Apostol v Bogdan Borza | 4-6,3-2 |
| UTR Pro Tennis Series Bukurešť | 2021/05/22 09:42 | Bogdan Ionut Apostol v George Botezan | 3-6,6-2,6-3 |
| UTR Pro Tennis Series Bukurešť | 2021/05/21 16:30 | Jules Marie v Bogdan Ionut Apostol | 7-5,6-4 |
| UTR Pro Tennis Series Bukurešť | 2021/05/21 10:00 | Stefan Palosi v Bogdan Ionut Apostol | 6-4,6-3 |
| ITF M25 Telfs | 2021/07/18 10:00 | Gonzalo Lama v Lukas Neumayer | 6-7,6-7 |
| ITF M25 Telfs | 2021/07/16 11:00 | Giovanni Oradini v Lukas Neumayer | 4-6,4-6 |
| ITF M25 Telfs | 2021/07/14 16:00 | Lukas Neumayer v Pavel Nejedly | 2-6,6-4,6-1 |
| Challenger Salzburg | 2021/07/04 11:20 | Jiří Lehečka v Lukas Neumayer | 6-3,6-2 |
| Rakousko - Mistrovství v tenisu | 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 |