Stadium: Court 12 Round: 25 Ground: Hardcourt outdoor
| ITF M15 Santo Domingo | 2023/11/10 13:00 | David Saye v Mwendwa Mbithi | 6-2,6-1 |
| ITF M15 Tallahassee | 2023/10/25 20:10 | Rei Sakamoto v Mwendwa Mbithi | 6-3,6-2 |
| ITF M15 Ithaca | 2023/10/03 19:15 | Mwendwa Mbithi v Ezekiel Clark | 2-6,0-6 |
| ITF M15 Belgrade | 2023/06/25 07:00 | Mwendwa Mbithi v Luka Petrovic | 3-6,3-6 |
| ITF M15 Kursumlijska Banja | 2023/06/18 15:00 | Mwendwa Mbithi v Aleksandar Mihailovic | 4-6,4-6 |
| ITF M15 Kursumlijska Banja | 2023/06/17 17:15 | Joao Eduardo Schiessl v Mwendwa Mbithi | 6-4,6-2 |
| ITF M15 Kursumlijska Banja | 2023/06/17 13:30 | Mwendwa Mbithi v Leonardo Aboian | 6-1,3-6,11-9 |
| ITF M15 Kursumlijska Banja | 2023/06/15 12:00 | Mwendwa Mbithi v Andrej Radojicic | 3-6,6-4,6-3 |
| ITF M15 Santo Domingo | 2023/11/08 16:30 | Kousuke Ogura v Evan Bynoe | 6-1,2-6,2-6 |
| ITF M25 Sapporo | 2023/09/15 03:20 | Kousuke Ogura v Kazuki Nishiwaki | 4-6,7-5,2-6 |
| ITF M25 Sapporo | 2023/09/12 07:10 | Sanhui Shin v Kousuke Ogura | 7-5,4-6,6-7 |
| ITF M25 Sapporo | 2023/09/05 02:00 | Jumpei Yamasaki v Kousuke Ogura | 6-4,6-4 |
| Challenger Lima | 2023/08/20 18:20 | Sebastian Rodriguez v Kousuke Ogura | 6-4,7-5 |
| Challenger Santo Domingo | 2023/08/07 21:00 | Jorge Panta v Kousuke Ogura | 4-6,6-1,6-2 |
| ITF M15 Pittsburgh | 2023/07/27 15:00 | Kousuke Ogura v Felix Corwin | 6-2,5-7,1-6 |
| ITF M15 Pittsburgh | 2023/07/25 16:00 | Kousuke Ogura v Enrique Pena | 7-5,6-3 |