Stadium: Court 20 Round: 25 Ground: Clay
| 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 |
| ITF M25 Meerbusch | 2021/04/16 09:00 | Milan Welte v Erler, Alexander | 1-6,4-6 |
| ITF M25 Meerbusch | 2021/04/15 10:00 | Erler, Alexander v Mertens, Yannick | 6-3,3-6,6-1 |
| ITF M25 Meerbusch | 2021/04/14 10:30 | Erler, Alexander v Netuschil, Marvin | 6-3,6-2 |
| ITF - M15 Antalya | 2021/04/26 07:00 | Colin Sinclair v Vito Dell'Elba | 6-3,6-3 |
| ITF - M15 Antalya | 2021/04/18 07:00 | Francesco Maestrelli v Vito Dell'Elba | 6-2,6-4 |
| ITF - M15 Antalya | 2021/04/11 07:00 | Vito Dell'Elba v Federico Campana | 2-6,1-6 |
| ITF - M15 Antalya | 2021/04/05 07:00 | Vito Dell'Elba v Hellfritsch, Lucas | 3-6,2-6 |
| ITF - M15 Antalya | 2021/04/04 06:30 | Vito Dell'Elba v Borroni, Andrea | 7-6,6-4 |
| ITF - M15 Antalya | 2021/03/28 06:30 | Turchetti, Nicolo v Vito Dell'Elba | 6-2,6-4 |
| ITF - M15 Antalya | 2021/03/21 07:00 | Vlad Andrei Dancu v Vito Dell'Elba | 6-0,6-0 |
| ITF - M15 Antalya | 2021/03/14 07:00 | Sigurdsson, Egill v Vito Dell'Elba | 6-3,6-3 |