Stadium: Court 2 Round: 25 Ground: Hardcourt outdoor
| ITF M15 Monastir | 2023/10/17 10:05 | Yuta Kikuchi v Tom Gentzsch | 2-6,6-7 |
| ITF M15 Monastir | 2023/10/12 08:00 | Yuta Kikuchi v Cyril Vandermeersch | 2-6,3-6 |
| ITF M15 Monastir | 2023/10/11 10:55 | Constantin Bittoun Kouzmine v Yuta Kikuchi | 1-6,4-6 |
| ITF M25 Takasaki | 2023/09/19 00:55 | Yuta Kikuchi v Koki Matsuda | 3-6,2-6 |
| ITF M25 Sapporo | 2023/09/13 03:00 | Seita Watanabe v Yuta Kikuchi | 6-1,6-3 |
| ITF M25 Sapporo | 2023/09/05 02:00 | Sora Fukuda v Yuta Kikuchi | 7-6,7-5 |
| UTR Pro Tennis Series - California | 2022/12/23 18:52 | Alex Michelsen v Yuta Kikuchi | 6-3,6-1 |
| UTR Pro Tennis Series - California | 2022/12/22 21:17 | Ryan Seggerman v Yuta Kikuchi | 4-6,6-6 |
| ITF M15 Doha | 2023/10/12 13:00 | Marat Sharipov v Olaf Pieczkowski | 6-7,6-2,6-2 |
| ITF M15 Doha | 2023/10/09 15:10 | Mashari Nawaf v Olaf Pieczkowski | 1-6,1-6 |
| ITF M15 Doha | 2023/10/06 12:55 | Coleman Wong v Olaf Pieczkowski | 7-6,6-3 |
| ITF M15 Doha | 2023/10/05 14:20 | Zach Stephens v Olaf Pieczkowski | 3-6,3-6 |
| ITF M15 Doha | 2023/10/04 18:10 | Grigoriy Lomakin v Olaf Pieczkowski | 3-6,4-6 |
| ITF M25 Falun | 2023/09/26 12:00 | Olaf Pieczkowski v Anton Matusevich | 7-6,3-6,4-6 |
| Davise karikas | 2023/09/15 14:35 | Olaf Pieczkowski v Darian King | 1-6,7-6,6-3 |
| ITF M15 Szczawno | 2023/09/03 09:30 | Olaf Pieczkowski v Jasza Szajrych | 6-1,6-2 |