Stadium: Court 3 Round: 25 Ground: Hardcourt outdoor
| ITF M15 Caloundra | 2023/08/01 04:45 | Daisuke Sumizawa v Taiyo Yamanaka | 4-6,6-3,7-6 |
| ITF M15 Caloundra | 2023/07/25 03:45 | Taiyo Yamanaka v Casey Hoole | 2-6,5-7 |
| ITF M15 Brcko | 2023/05/22 07:30 | Taiyo Yamanaka v Timothy Gray | 6-4,6-4 |
| ITF M15 Prijedor | 2023/05/18 08:45 | Igor Gimenez v Taiyo Yamanaka | 6-4,4-6,10-5 |
| ITF M15 Doboj | 2023/05/10 14:30 | Marat Sharipov v Taiyo Yamanaka | 6-3,6-2 |
| ITF M15 Doboj | 2023/05/09 08:00 | Taiyo Yamanaka v Radomir Tomic | 2-6,6-7 |
| ITF M15 Doboj | 2023/05/08 08:00 | Taiyo Yamanaka v Federico Mirgone | 6-0,6-0 |
| ITF M25 Kashiwa | 2023/04/03 01:00 | Renta Tokuda v Taiyo Yamanaka | 6-0,7-5 |
| ITF M15 Nakhon Si Thammarat | 2023/08/21 06:00 | Qian Sun v Collin Altamirano | 7-5,6-7,1-10 |
| ITF M15 Nakhon Si Thammarat | 2023/08/20 05:05 | Geni Inoue v Collin Altamirano | 0-6,3-6 |
| ITF M25 The Hague | 2023/07/06 16:45 | Collin Altamirano v Guy Den Ouden | 6-7,6-3,2-6 |
| ITF M25 The Hague | 2023/07/05 17:10 | Collin Altamirano v Oskar Jansson | 6-2,6-4 |
| ITF M25 The Hague | 2023/07/03 10:00 | Roland Stuurman v Collin Altamirano | 2-6,6-3,10-8 |
| ITF M25 The Hague | 2023/07/02 08:00 | Twan Van Zijl v Collin Altamirano | 1-6,5-7 |
| ITF M15 Wroclaw | 2023/06/26 08:00 | Collin Altamirano v Michael Agwi | 3-6,3-6 |
| ITF M15 Wroclaw | 2023/06/25 09:00 | Kris Krawcewicz v Collin Altamirano | 3-6,0-6 |