Stadium: Voba Meebusch Court Round: 26 Ground: Clay
| Challenger Meerbusch | 2023/08/08 14:45 | Kilian Feldbausch v Max Houkes | 7-5,6-4 |
| ATP Kitzbuhel | 2023/07/29 09:00 | Kilian Feldbausch v Ivan Gakhov | 4-6,6-7 |
| Challenger Zug | 2023/07/25 13:00 | Kilian Feldbausch v Fabio Fognini | 4-6,2-6 |
| ATP Gstaad | 2023/07/15 10:10 | Facundo Bagnis v Kilian Feldbausch | 7-6,6-3 |
| ITF M25 Klosters | 2023/07/04 11:25 | Gabriel Debru v Kilian Feldbausch | 6-4,6-7,6-4 |
| Challenger Roseto | 2023/04/20 09:00 | Kilian Feldbausch v Franco Agamenone | 0-6,1-6 |
| Challenger Roseto | 2023/04/19 09:00 | Mariano Navone v Kilian Feldbausch | 6-7,0-6 |
| ITF M15 Doha | 2023/01/12 12:00 | Marat Sharipov v Kilian Feldbausch | 6-3,1-6,6-4 |
| Challenger Meerbusch | 2023/08/09 09:25 | Daniel Rincon v Felix Gill | 6-4,6-2 |
| Challenger San Marino | 2023/08/05 17:30 | Daniel Rincon v Jaume Munar | 6-0,1-6,2-6 |
| Challenger San Marino | 2023/08/05 11:40 | Daniel Rincon v Fabio Fognini | 6-7,6-4,6-4 |
| Challenger San Marino | 2023/08/03 14:00 | Kimmer Coppejans v Daniel Rincon | 3-6,2-6 |
| Challenger San Marino | 2023/08/01 09:00 | Daniel Rincon v Marcello Serafini | 7-6,7-6 |
| Challenger Tampere | 2023/07/22 08:00 | Daniel Rincon v Sumit Nagal | 6-4,3-6,2-6 |
| Challenger Tampere | 2023/07/21 10:00 | Duje Ajdukovic v Daniel Rincon | 3-6,1-6 |
| Challenger Tampere | 2023/07/20 09:00 | Daniel Rincon v Kimmer Coppejans | 7-5,6-4 |