Stadium: Court 3 Round: 62 Ground: Hardcourt outdoor
| Challenger Ismaning | 2021/10/24 10:35 | Matthias Bachinger v Michael Weindl | 6-1,6-3 |
| ITF M15 Allershausen | 2021/09/01 09:00 | Dominik Boehler v Michael Weindl | 1-6,6-1,6-2 |
| ITF M15 Allershausen | 2021/08/31 08:00 | Anirudh Chandrasekar v Michael Weindl | 2-6,3-6 |
| ITF M25 Trimbach | 2021/03/08 09:00 | Jonas Schaer v Michael Weindl | 7-6,5-7,11-9 |
| ITF M15 Antalya | 2021/01/11 07:00 | Calin Manda v Michael Weindl | 7-6,6-2 |
| ITF M15 Antalya | 2021/01/10 06:00 | Emir Sutekin v Michael Weindl | 0-6,2-6 |
| German Championship | 2020/12/10 10:30 | Michael Weindl v Benjamin Hassan | 3-6,4-6 |
| German Championship | 2020/12/08 15:00 | Milan Welte v Michael Weindl | 0-0 |
| ITF M15 Heraklion | 2021/06/08 06:30 | Ioannis Papounidis v Ben Jones | 0-6,4-6 |
| ITF M15 Heraklion | 2021/06/06 07:30 | Petr Hajek v Ioannis Papounidis | 4-6,7-5,6-10 |
| ITF M15 Heraklion | 2021/05/31 06:30 | Ioannis Papounidis v Volodymyr Uzhylovskyi | 3-6,5-7 |
| ITF M15 Heraklion | 2021/05/30 06:30 | Josef Southcombe v Ioannis Papounidis | 6-7,6-4,6-10 |
| ITF M15 Heraklion | 2021/05/23 06:30 | Ioannis Papounidis v Harry Wendelken | 6-4,3-6,3-10 |
| ITF Greece F7 | 2018/11/03 10:00 | Mathieu Garcia v Ioannis Papounidis | 6-1,6-2 |
| ITF Greece F6 | 2018/10/29 07:30 | Ioannis Papounidis v Domen Gostincar | 3-6,3-6 |
| ITF Greece F6 | 2018/10/28 07:30 | Shinnosuke Hiramatsu v Ioannis Papounidis | 7-5,1-6,0-6 |