Stadium: Court 1 Round: 27 Ground: Hardcourt outdoor
| ITF M25 Portimao | 2021/10/28 09:00 | Sebastian Fanselow v Pablo Llamas Ruiz | 6-4,4-6,6-4 |
| ITF M25 Portimao | 2021/10/27 09:00 | Sebastian Fanselow v Mehdi Sadaoui | 6-4,6-3 |
| ITF M25 Quinta Do Lago | 2021/10/21 09:00 | Sebastian Fanselow v Maximilian Neuchrist | 3-6,6-4,3-6 |
| ITF M25 Quinta Do Lago | 2021/10/20 08:55 | Sebastian Fanselow v Rio Noguchi | 6-3,7-6 |
| ITF M25 Loule | 2021/10/13 15:40 | Sebastian Fanselow v Pedro Araujo | 4-6,6-1,0-6 |
| ITF M25 Setubal | 2021/10/08 12:05 | Arthur Cazaux v Sebastian Fanselow | 3-6,6-3,6-3 |
| ITF M25 Setubal | 2021/10/07 10:30 | Illia Stoliar v Sebastian Fanselow | 1-6,0-6 |
| ITF M25 Setubal | 2021/10/06 10:00 | Jumpei Yamasaki v Sebastian Fanselow | 6-4,4-6,4-6 |
| ITF M25 Portimao | 2021/10/28 13:35 | Michael Zhu v Petros Chrysochos | 2-6,0-6 |
| ITF M25 Portimao | 2021/10/27 13:00 | David Quayle v Petros Chrysochos | 1-6,3-6 |
| ITF M25 Quinta Do Lago | 2021/10/19 12:50 | Naoki Nakagawa v Petros Chrysochos | 7-6,6-1 |
| ITF M25 Loule | 2021/10/14 13:55 | Petros Chrysochos v Maximilian Neuchrist | 6-4,3-6,5-7 |
| ITF M25 Loule | 2021/10/13 14:20 | Petros Chrysochos v Pawel Juszczak | 7-5,6-3 |
| ITF M25 Setubal | 2021/10/08 10:30 | Rinky Hijikata v Petros Chrysochos | 6-3,6-2 |
| ITF M25 Setubal | 2021/10/07 14:35 | Henrique Rocha v Petros Chrysochos | 7-6,4-6,3-6 |
| Challenger Como | 2021/08/31 09:05 | Federico Gaio v Petros Chrysochos | 6-1,3-6,6-3 |