Stadium: VOLKSBANK Court Round: 27 Ground: Clay
| ITF M15 Ueberlingen | 2023/08/17 07:55 | Hazem Naw v David Fix | 6-7,4-6 |
| ITF M15 Ueberlingen | 2023/08/15 15:25 | David Fix v Schlageter, Justin | 7-5,6-3 |
| ITF M15 Eupen | 2023/08/09 16:50 | Stijn Slump v David Fix | 3-6,6-4,6-1 |
| ITF M15 Metzingen | 2023/07/26 14:55 | Daniel Paty v David Fix | 6-2,6-1 |
| Challenger Karlsruhe | 2023/07/02 13:50 | Denis Yevseyev v David Fix | 6-3,6-3 |
| ITF M15 Kamen | 2023/06/27 10:45 | Jahn, Jeremy v David Fix | 6-2,6-4 |
| Saarlouis, Singles Qualifying M-ITF-GER-07A | 2023/06/21 13:20 | David Fix v Guy Den Heijer | 6-4,6-7,2-6 |
| Challenger Ismaning | 2022/10/09 16:45 | Kacper Zuk v David Fix | 6-1,6-3 |
| ITF M15 Ueberlingen | 2023/08/17 08:00 | Mark Wallner v Fnu Nidunjianzan | 4-6,6-4,3-6 |
| ITF M15 Ueberlingen | 2023/08/16 10:50 | Fnu Nidunjianzan v Tom Gentzsch | 6-4,4-6,6-4 |
| ITF M15 Pescara | 2023/08/09 10:30 | Carraro, Luciano v Fnu Nidunjianzan | 4-6,6-4,6-4 |
| ITF M15 Pescara | 2023/08/08 08:00 | Fnu Nidunjianzan v Galoppini, Davide | 5-7,6-4,7-5 |
| ITF M15 Xativa | 2023/08/03 15:00 | Fnu Nidunjianzan v Sergio Callejon Hernando | 3-6,3-6 |
| ITF M15 Xativa | 2023/08/02 19:25 | Fnu Nidunjianzan v Ignacio Parisca | 6-1,6-4 |
| ITF M15 Huntsville | 2023/05/28 16:45 | Roberto Cid Subervi v Fnu Nidunjianzan | 5-7,3-6 |
| ITF M15 Huntsville | 2023/05/27 16:00 | Fnu Nidunjianzan v Blaise Bicknell | 2-6,7-6,6-1 |