Stadium: Court 5 Round: 54 Ground: Hardcourt indoor
| ITF M25 Trier | 2021/08/25 09:00 | Marvin Moeller v Leopold Zima | 6-1,7-5 |
| ITF M25 Trier | 2021/08/23 15:05 | Leopold Zima v Benito Sanchez Martinez | 6-1,7-5 |
| ITF M25 Trier | 2021/08/23 10:30 | Leopold Zima v Lennart Melzer | 6-1,6-1 |
| ITF M25 Überlingen | 2021/08/19 12:30 | Ergi Kirkin v Leopold Zima | 5-7,6-0,6-3 |
| ITF M25 Überlingen | 2021/08/18 12:55 | Leopold Zima v Martin Benes | 6-2,6-1 |
| ITF M25 Frankfurt | 2021/08/09 08:50 | Dominik Fritsche v Leopold Zima | 6-3,7-5 |
| ITF M25 Klosters | 2021/06/21 07:00 | Luca Castelnuovo v Leopold Zima | 6-2,3-6,10-6 |
| ITF M25 Klosters | 2021/06/20 07:00 | Moritz Trocker v Leopold Zima | 2-6,2-6 |
| ITF M25 Muttenz | 2021/08/17 08:15 | Mirko Martinez v Nicolas Kobelt | 6-4,6-1 |
| ITF M25 Muttenz | 2021/08/16 11:55 | Nicolas Kobelt v Jan Sebesta | 6-4,6-2 |