Stadium: VOLKSBANK Court Round: 26 Ground: Clay
| ITF M25 Ueberlingen | 2021/08/17 14:50 | Ergi Kirkin v Manfred Fellin | 1-6,6-0,6-2 |
| ITF M15 Parnu | 2021/08/08 08:00 | Ergi Kirkin v Mattias Siimar | 5-7,6-3,6-3 |
| ITF M15 Parnu | 2021/08/07 09:30 | Ergi Kirkin v Simone Roncalli | 6-1,6-2 |
| ITF M15 Parnu | 2021/08/06 08:00 | Ergi Kirkin v Luke Johnson | 6-2,6-1 |
| ITF M15 Parnu | 2021/08/05 10:30 | Ergi Kirkin v Alexander Kotzen | 7-6,6-4 |
| ITF M15 Parnu | 2021/08/04 08:35 | Ergi Kirkin v Oscar Weightman | 6-2,4-6,7-5 |
| ITF M15 Vejle | 2021/08/01 10:20 | Ergi Kirkin v August Holmgren | 7-6,6-4 |
| ITF M15 Vejle | 2021/07/31 07:50 | Ergi Kirkin v Matias Zukas | 6-1,6-4 |
| ITF M25 Ueberlingen | 2021/08/18 12:55 | Leopold Zima v Martin Benes | 6-2,6-1 |
| ITF M25 Frankfurt am Main | 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 M15 Genova | 2021/06/17 15:50 | Johan Sebastien Tatlot v Leopold Zima | 6-0,6-2 |
| ITF M15 Genova | 2021/06/16 17:45 | Alessandro Ceppellini v Leopold Zima | 6-4,3-6,2-6 |
| ITF M15 Genova | 2021/06/15 08:55 | Mirko Martinez v Leopold Zima | 5-7,4-6 |
| ITF M15 Genova | 2021/06/14 07:00 | Leopold Zima v Nicolo Turchetti | 6-1,4-6,10-7 |