Stadium: Court 3 Round: 28 Ground: Clay
| ITF - M15 Antalya | 2021/05/07 06:55 | Filip Cristian Jianu v Orlando Luz | 1-6,6-3,3-6 |
| ITF - M15 Antalya | 2021/05/06 09:50 | Orlando Luz v Rio Noguchi | 6-4,6-3 |
| ITF - M15 Antalya | 2021/05/05 06:50 | David Pichler v Orlando Luz | 2-6,2-6 |
| ITF - M15 Antalya | 2021/05/04 07:00 | Orlando Luz v Sandro Kopp | 6-1,6-2 |
| ITF - M15 Antalya | 2021/05/03 07:00 | Orlando Luz v Oscar Galimardanov | 6-2,6-0 |
| ITF - M15 Antalya | 2021/05/02 06:00 | Orlando Luz v Daisuke Sumizawa | 6-1,6-2 |
| Challenger Salinas 2 | 2021/04/28 17:15 | Orlando Luz v Nicolas Jarry | 2-6,4-6 |
| Challenger - Tallahassee | 2021/04/19 15:00 | Orlando Luz v Alex Rybakov | 2-6,3-6 |
| ITF - M15 Antalya | 2021/05/07 07:00 | Erler, Alexander v Nick Hardt | 7-6,6-0 |
| ITF - M15 Antalya | 2021/05/06 07:00 | Erler, Alexander v Kim, Cheong-Eui | 6-4,3-6,6-3 |
| ITF - M15 Antalya | 2021/05/05 08:25 | Erler, Alexander v Vito Dell'Elba | 6-0,6-0 |
| Sibenik, Singles M-ITF-CRO-05A | 2021/04/23 08:00 | Prechtel, Sebastian v Erler, Alexander | 6-4,6-4 |
| Sibenik, Singles M-ITF-CRO-05A | 2021/04/22 10:15 | Marco Miceli v Erler, Alexander | 1-6,4-6 |
| Sibenik, Singles M-ITF-CRO-05A | 2021/04/21 13:20 | Gorazd Srbljak v Erler, Alexander | 1-6,2-6 |
| ITF M25 Meerbusch | 2021/04/18 11:30 | Erler, Alexander v Arthur Cazaux | 6-2,4-6,7-5 |
| ITF M25 Meerbusch | 2021/04/17 12:55 | Elmar Ejupovic v Erler, Alexander | 3-6,4-6 |