| Challenger Series TT | 2023/06/06 09:10 | Akito Itagaki v Simon Berglund | L | 0-3 |
| Challenger Series TT | 2023/06/05 19:50 | Akito Itagaki v Antonin Gavlas | L | 0-3 |
| Challenger Series TT | 2023/06/05 17:10 | Akito Itagaki v David Molnar | W | 3-2 |
| Challenger Series TT | 2023/06/05 14:30 | Kirill Fadeev v Akito Itagaki | L | 3-1 |
| Challenger Series TT | 2023/06/05 11:50 | Akos Kishegyi v Akito Itagaki | W | 1-3 |
| Challenger Series TT | 2023/06/05 09:50 | Akito Itagaki v Florian Bluhm | L | 0-3 |
| Challenger Series TT | 2023/06/05 07:50 | Akito Itagaki v Jin Ueda | L | 0-3 |
| Challenger Series TT | 2023/05/05 07:50 | Damian Zech v Akito Itagaki | W | 0-3 |
| Challenger Series TT | 2023/02/21 10:10 | Daniel Rinderer v Miguel Nunez | L | 2-3 |
| Challenger Series TT | 2023/02/21 07:30 | Daniel Rinderer v Dauud Cheaib | L | 1-3 |
| Challenger Series TT | 2023/02/20 16:50 | Daniel Rinderer v David Reitspies | L | 1-3 |
| Challenger Series TT | 2023/02/20 16:10 | Daniel Rinderer v Andrei Putuntica | L | 1-3 |
| Challenger Series TT | 2023/02/20 10:10 | Daniel Rinderer v Norbert Tauler | L | 2-3 |
| Challenger Series TT | 2023/02/20 07:30 | Daniel Rinderer v Pekka Pelz | W | 3-1 |
| Challenger Series TT | 2023/01/10 10:10 | Kestutis Zeimys v Daniel Rinderer | W | 2-3 |
| Challenger Series TT | 2023/01/10 08:10 | Daniel Rinderer v Dauud Cheaib | L | 2-3 |