Estadio: Court 2 Round: 26 Ground: Clay
| ITF 15 Antalya | 2021/05/05 08:25 | Alexander Erler v Vito Dell'Elba | 6-0,6-0 |
| ITF M15 Sibenik | 2021/04/23 08:00 | Sebastian Prechtel v Alexander Erler | 6-4,6-4 |
| ITF M15 Sibenik | 2021/04/22 10:15 | Marco Miceli v Alexander Erler | 1-6,4-6 |
| 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 15 Antalya | 2021/05/05 10:10 | Mathys Erhard v Cheong-Eui Kim | 4-6,6-2,4-6 |
| ITF 15 Antalya | 2021/05/04 07:00 | Dragos Nicolae Madaras v Cheong-Eui Kim | 6-4,4-6,8-10 |
| ITF 15 Antalya | 2021/05/03 07:00 | Valentin Vanta v Cheong-Eui Kim | 7-5,4-6,4-10 |
| ITF 15 Antalya | 2021/05/02 06:00 | Zura Tkemaladze v Cheong-Eui Kim | 7-6,5-7,12-14 |
| ITF 15 Antalya | 2021/04/25 07:00 | Francesco Maestrelli v Cheong-Eui Kim | 6-2,7-6 |
| ITF 15 Antalya | 2021/04/19 07:00 | Daniel Siniakov v Cheong-Eui Kim | 6-4,3-6,11-9 |
| ITF 15 Antalya | 2021/04/16 10:00 | Cheong-Eui Kim v Nicolae Frunza | 0-6,2-6 |
| ITF 15 Antalya | 2021/04/15 08:45 | Cheong-Eui Kim v Edoardo Graziani | 7-5,5-7,6-4 |