Stadium: Court 5 Round: 45 Ground: Hardcourt outdoor
| ITF M15 Yanagawa | 2023/12/21 03:45 | Sanhui Shin v Kokoro Isomura | 6-3,5-7,7-6 |
| ITF M15 Yanagawa | 2023/12/21 00:30 | Kokoro Isomura v Kosuke Morita | 6-0,6-3 |
| ITF M15 Kuala Lumpur | 2023/12/01 02:00 | Yeongseok Jeong v Kokoro Isomura | 6-2,7-5 |
| ITF M15 Kuala Lumpur | 2023/11/29 04:30 | Daniel Leong Prickett v Kokoro Isomura | 3-6,6-4,3-6 |
| ITF M15 Ipoh Perak | 2023/11/22 01:30 | Kokoro Isomura v Yuta Kawahashi | 3-6,6-1,0-6 |
| ITF M15 Kuching | 2023/11/17 02:00 | Kokoro Isomura v Alexey Zakharov | 2-6,1-6 |
| ITF M15 Kuching | 2023/11/16 04:05 | Takuya Kumasaka v Kokoro Isomura | 3-6,6-3,6-7 |
| ITF M15 Kuching | 2023/11/14 03:00 | Kokoro Isomura v Mitsuki Wei Kang Leong | 6-2,6-0 |
| ATP Auckland | 2024/01/06 02:20 | Alexander Klintcharov v Constant Lestienne | 0-6,2-6 |
| ITF M15 Wellington | 2023/12/11 23:50 | Jayden Court v Alexander Klintcharov | 5-7,6-3,6-2 |
| ITF M25 Gold Coast | 2023/11/27 00:00 | Alexander Klintcharov v Mason Naumovski | 4-6,5-7 |
| ITF M25 Brisbane | 2023/11/22 02:45 | Nam Hoang Ly v Alexander Klintcharov | 7-5,6-4 |
| ITF M25 Brisbane | 2023/11/21 00:00 | Alexander Klintcharov v Tomislav E Papac | 6-3,0-6,7-10 |
| ITF M25 Brisbane | 2023/11/20 00:00 | Alexander Klintcharov v Stefan Bianchet | 7-6,6-4 |
| Challenger Sydney | 2023/10/29 00:20 | Ji Sung Nam v Alexander Klintcharov | 6-2,7-6 |
| Challenger Playford | 2023/10/22 03:15 | Thomas Fancutt v Alexander Klintcharov | 6-4,6-2 |