Stadium: MTA 07 Round: 62 Ground: Clay
| ITF - M15 Antalya | 2021/03/07 07:00 | Walder, Jim v Federico Campana | 6-1,2-6,13-15 |
| ITF - M15 Antalya | 2021/02/28 11:00 | Radu Mihai Papoe v Walder, Jim | 6-2,6-4 |
| ITF - M15 Antalya | 2021/02/02 07:00 | Oleksii Krutykh v Walder, Jim | 4-6,6-3,10-5 |
| ITF - M15 Antalya | 2021/01/31 10:00 | Soyler, Osmancan v Walder, Jim | 3-6,3-6 |
| German Championship | 2020/12/08 15:00 | Walder, Jim v Benjamin Hassan | 2-6,6-7 |
| German Championship | 2020/12/07 15:00 | Neo Niedner v Walder, Jim | 2-6,6-4,6-7 |
| German Masters | 2020/08/14 07:00 | Slobodchikov, Ronald v Walder, Jim | 6-2,6-4 |
| German Premier League | 2020/08/13 12:40 | Walder, Jim v Filip Cristian Jianu | 4-6,4-6 |
| ITF - M15 Antalya | 2021/03/07 07:00 | Parshutin, Denis v Ivan Zaytsev | 6-4,6-3 |
| ITF M15 Nur-Sultan | 2021/02/08 04:00 | Matteo Arnaldi v Ivan Zaytsev | 6-2,6-3 |
| ITF M15 Nur-Sultan | 2021/02/01 07:30 | Ivan Liutarevich v Ivan Zaytsev | 6-3,6-4 |
| ITF - M15 Sharm El Sheikh | 2020/02/03 08:00 | Khomich, Aleksei v Ivan Zaytsev | 6-3,6-3 |
| ITF - M15 Sharm El Sheikh | 2020/02/02 08:00 | Bertuccioli, Federico v Ivan Zaytsev | 3-6,3-6 |
| ITF - M15 Antalya | 2020/01/26 07:00 | Nedelko, Ivan v Ivan Zaytsev | 6-3,6-0 |
| ITF - M15 Antalya | 2019/12/16 11:30 | Luigi Sorrentino v Ivan Zaytsev | 6-1,6-2 |
| ITF - M15 Antalya | 2019/11/17 11:00 | Ivan Zaytsev v Daljev, Pavle | 5-7,3-6 |