| Challenger Series TT | 05/23 16:00 | - | Marco Stefanidis v William Koehl | - | Cancelled | |
| Challenger Series TT | 05/23 14:30 | - | Marco Stefanidis v Michael Engelhardt | - | Cancelled | |
| Challenger Series TT | 05/23 13:00 | - | Marco Stefanidis v Almeida, Siddharta | W | 3-2 | |
| Challenger Series TT | 05/23 11:00 | - | Marco Stefanidis v Carlos Roman Pozo | W | 3-0 | |
| Challenger Series TT | 05/23 09:00 | - | Mosyuk, Mikhail v Marco Stefanidis | W | 2-3 | |
| Challenger Series TT | 05/23 08:00 | - | Lars Maier v Marco Stefanidis | L | 3-2 | |
| Challenger Series TT | 05/23 06:30 | - | 로트피자나바디, 미아드 v Marco Stefanidis | W | 2-3 | |
| Challenger Series TT | 04/12 09:25 | - | Marco Stefanidis v 하페크, 스벤 | L | 1-3 | |
| Challenger Series TT | 04/12 06:30 | - | Marco Stefanidis v Adrien Coton | L | 0-3 | |
| Challenger Series TT | 04/11 16:25 | - | Marco Stefanidis v 릴로, 알베르토 | L | 0-3 | |
| Challenger Series TT | 04/11 15:15 | - | Marco Stefanidis v Turrini, Rafael | L | 1-3 | |
| Challenger Series TT | 04/11 11:10 | - | Marco Stefanidis v Damian Zech | W | 3-1 | |
| Challenger Series TT | 04/11 08:50 | - | Marco Stefanidis v 발루치, 알렉산더 | L | 1-3 | |
| Challenger Series TT | 04/11 06:30 | - | Marco Stefanidis v Daniel Rinderer | L | 2-3 | |
| Challenger Series TT | 03/12 10:45 | - | 베르트란드, 어빈 v Marco Stefanidis | W | 2-3 | |
| Challenger Series TT | 03/12 08:10 | - | Marco Stefanidis v Miguel Nunez Tapia | L | 1-3 | |
| Challenger Series TT | 03/11 20:10 | - | Kishegyi, Akos v Marco Stefanidis | W | 1-3 | |
| Challenger Series TT | 03/11 17:30 | - | Diego Lillo v Marco Stefanidis | L | 3-2 | |
| Challenger Series TT | 03/11 14:50 | - | Marco Stefanidis v Mohammed Javad Sohrabi | L | 2-3 | |
| Challenger Series TT | 03/11 11:30 | - | Marco Stefanidis v Mike Hollo | L | 0-3 | |
| Challenger Series TT | 03/11 09:30 | - | Marco Stefanidis v 하페크, 스벤 | W | 3-0 | |
| Challenger Series TT | 11/28 11:30 | - | Marco Stefanidis v Damian Zech | - | Cancelled | |
| Challenger Series TT | 11/28 08:50 | - | Marco Stefanidis v Michael Fuchs | - | Cancelled | |
| Challenger Series TT | 11/27 20:10 | - | Marco Stefanidis v Johannes Willeke | - | Cancelled | |
| Challenger Series TT | 11/27 15:30 | - | Marco Stefanidis v 파데예프, 키릴 | - | Cancelled | |
| Challenger Series TT | 11/27 13:30 | - | Marco Stefanidis v 알리시크, 아르민 | - | away | |
| Challenger Series TT | 11/27 10:10 | - | Aljaz Godec v Marco Stefanidis | L | 3-1 | |
| Challenger Series TT | 11/27 08:10 | - | Marco Stefanidis v Michael Engelhardt | - | Cancelled | |
| Challenger Series TT | 11/27 08:10 | - | Marco Stefanidis v 추, 량 | L | 0-3 | |
| Challenger Series TT | 09/15 09:50 | - | Marco Stefanidis v Guillaume Alcayde | L | 0-3 |