Ground: Hardcourt outdoor
| 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 |
| ITF M15 Yanagawa | 2023/12/26 00:30 | Hiroki Sakagawa v Shunsuke Nakagawa | 5-7,4-6 |
| ITF M15 Yanagawa | 2023/12/25 00:30 | Yuichiro Inui v Hiroki Sakagawa | 3-6,3-6 |
| ITF M15 Yanagawa | 2023/12/20 02:30 | Hiroki Sakagawa v Ryotaro Matsumura | 2-6,1-6 |
| ITF M15 Yanagawa | 2023/12/18 01:00 | Kenta Miyoshi v Hiroki Sakagawa | 4-6,6-2,9-11 |
| ITF M25 Sapporo | 2023/09/11 01:00 | Woobin Shin v Hiroki Sakagawa | 0-6,6-3,10-7 |
| ITF M25 Sapporo | 2023/09/10 01:00 | Hiroki Sakagawa v Hiroyasu Ehara | 6-7,6-1,10-6 |
| ITF M25 Sapporo | 2023/09/05 04:20 | Shuichi Sekiguchi v Hiroki Sakagawa | 6-3,6-2 |
| ITF M25 Sapporo | 2023/09/04 00:55 | Hiroki Sakagawa v Omar Fields | 5-7,6-3,13-11 |