Stadium: Court 6 Round: 26 Ground: Clay
| ITF Austria F6 | 2018/08/08 10:40 | Alexander Erler v Marco Miceli | 6-1,6-2 |
| ITF M15 Sibenik | 2021/04/21 08:00 | Tim Heger v Marco Miceli | 3-6,4-6 |
| ITF M15 Sharm El Sheikh | 2021/03/24 13:25 | Marcello Serafini v Marco Miceli | 6-1,6-3 |
| ITF M15 Sharm El Sheikh | 2021/03/23 07:30 | Marco Miceli v Sebastian Eguez | 7-5,6-2 |
| ITF M15 Sharm El Sheikh | 2021/03/22 07:30 | Marco Miceli v Christian Sigsgaard | 7-6,3-6,10-5 |
| ITF M15 Sharm El Sheikh | 2021/03/21 09:30 | Marco Miceli v Pierre Malan | 6-3,2-6,10-5 |
| ITF M15 Sharm El Sheikh | 2021/03/14 11:00 | Marco Miceli v Toby D. Boyer | 4-6,5-7 |
| Challenger Biella | 2021/03/07 09:30 | Marco Miceli v Jonas Forejtek | 1-6,2-6 |
| ITF M15 Sharm El Sheikh | 2021/02/23 07:30 | Marco Miceli v Lorenzo Claverie | 3-6,6-4,8-10 |
| ITF M15 Sibenik | 2021/04/21 13:20 | Gorazd Srbljak v Alexander Erler | 1-6,2-6 |
| ITF M25 Meerbusch | 2021/04/18 11:30 | Alexander Erler v Arthur Cazaux | 6-2,4-6,7-5 |
| ITF M25 Meerbusch | 2021/04/17 12:55 | Elmar Ejupovic v Alexander Erler | 3-6,4-6 |
| ITF M25 Meerbusch | 2021/04/16 09:00 | Milan Welte v Alexander Erler | 1-6,4-6 |
| ITF M25 Meerbusch | 2021/04/15 10:00 | Alexander Erler v Yannick Mertens | 6-3,3-6,6-1 |
| ITF M25 Meerbusch | 2021/04/14 10:30 | Alexander Erler v Marvin Netuschil | 6-3,6-2 |
| ITF M25 Biel | 2021/03/30 08:00 | Alexander Erler v Kilian Feldbausch | 4-6,6-3,5-10 |
| ITF M25 Biel | 2021/03/29 08:00 | Alexander Erler v Mischa Lanz | 6-3,6-4 |