Stadium: Court 5 Round: 27 Ground: Clay
| ITF M15 Antalya | 2021/06/10 10:25 | Christian Lindell v Martin Krumich | 3-6,3-6 |
| ITF M15 Antalya | 2021/06/09 07:00 | Martin Krumich v Zakhar Trapeznikov | 6-1,6-3 |
| ITF M25 Most | 2021/05/25 09:35 | Gijs Brouwer v Martin Krumich | 6-3,5-7,6-4 |
| ITF M25 Jablonec Nad Nisou | 2021/05/20 09:45 | Jiri Lehecka v Martin Krumich | 6-2,6-3 |
| ITF M25 Jablonec Nad Nisou | 2021/05/19 10:40 | Martin Krumich v Christian Lindell | 6-3,6-1 |
| ITF M25 Jablonec Nad Nisou | 2021/05/18 11:00 | Lenny Hampel v Martin Krumich | 6-3,6-4 |
| ITF M25 Jablonec Nad Nisou | 2021/05/17 10:00 | Lucas Bouquet v Martin Krumich | 2-6,6-3,10-12 |
| ITF M25 Jablonec Nad Nisou | 2021/05/16 11:30 | Martin Benes v Martin Krumich | 4-6,0-6 |
| ITF M15 Antalya | 2021/06/10 07:00 | Marsel Ilhan v Riccardo Balzerani | 7-6,6-7,3-6 |
| ITF M15 Antalya | 2021/06/08 07:00 | Bora Sengul v Riccardo Balzerani | 4-6,4-6 |
| ITF M15 Antalya | 2021/05/05 10:10 | Riccardo Balzerani v Sandro Ehrat | 2-6,6-7 |
| ITF M15 Antalya | 2021/04/28 07:00 | Riccardo Balzerani v Peter Heller | 1-6,4-6 |
| ITF M15 Monastir | 2021/04/08 11:30 | Riccardo Balzerani v Evan Zhu | 0-6,7-6,3-6 |
| ITF M15 Monastir | 2021/04/06 09:00 | Riccardo Balzerani v Thomas George Brun | 6-2,6-2 |
| ITF M15 Monastir | 2021/03/31 11:00 | Riccardo Balzerani v Alex Barrena | 4-6,6-2,1-6 |
| ITF M15 Bratislava | 2021/03/05 09:00 | Riccardo Balzerani v Vitaliy Sachko | 3-6,2-6 |