Stadium: Court 2 Round: 25 Ground: Hardcourt outdoor
| ITF M25 Esch/Alzette | 2023/07/13 10:00 | Kai Wehnelt v Alex Knaff | 6-7,7-6,7-6 |
| ITF M15 Cadolzburg | 2024/01/17 09:55 | Jakub Filip v Kai Wehnelt | 7-6,0-6,7-6 |
| Challenger Yokkaichi | 2023/11/27 01:00 | August Holmgren v Kai Wehnelt | 6-2,6-4 |
| Challenger Yokohama | 2023/11/19 06:50 | Kai Wehnelt v Yan Bai | 4-6,4-6 |
| Challenger Drummondville | 2023/11/12 20:20 | Kai Wehnelt v Nicaise Muamba | 4-6,6-4,6-7 |
| Challenger Calgary | 2023/11/06 17:00 | Kai Wehnelt v Patrick Brady | 1-6,6-7 |
| Challenger Sydney | 2023/10/30 02:10 | Rubin Statham v Kai Wehnelt | 6-4,7-6 |
| Challenger Sydney | 2023/10/29 02:20 | Sean Van Rensburg v Kai Wehnelt | 1-6,2-6 |
| Challenger Playford | 2023/10/23 23:30 | Kai Wehnelt v Yuta Shimizu | 4-6,4-6 |
| ITF M25 Esch/Alzette | 2024/01/03 11:30 | Alex Knaff v Boris Fassbender | 2-6,3-6 |
| ITF M15 Zahra | 2023/12/15 06:55 | Emilien Demanet v Alex Knaff | 6-3,3-6,7-5 |
| ITF M15 Zahra | 2023/12/14 08:55 | Matic Kriznik v Alex Knaff | 4-6,2-6 |
| ITF M15 Zahra | 2023/12/13 13:40 | Ryan James Storrie v Alex Knaff | 5-7,2-6 |
| ITF M15 Zahra | 2023/12/08 07:00 | Jules Marie v Alex Knaff | 6-2,6-1 |
| ITF M15 Zahra | 2023/12/07 09:30 | Aleksandr Braynin v Alex Knaff | 3-6,2-6 |
| ITF M15 Zahra | 2023/12/06 07:00 | Lukas H Lilleengen v Alex Knaff | 1-6,3-6 |
| ITF M15 Al Zahra | 2023/12/02 07:55 | Yanki Erel v Alex Knaff | 6-0,6-2 |