Stadium: Court 3 Round: 25 Ground: Clay
| 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 |
| Czech Republic Extraliga | 2023/12/14 11:00 | Dominik Kellovsky v Vit Kalina | 6-3,6-2 |
| ITF M15 Monastir | 2023/12/06 08:00 | Vit Kalina v Jakub Paul | 6-7,1-6 |
| ITF M15 Limassol | 2023/11/29 12:35 | Petros Chrysochos v Vit Kalina | 6-3,6-2 |
| ITF M15 Monastir | 2023/11/02 10:10 | Elliot Benchetrit v Vit Kalina | 6-1,6-4 |
| ITF M15 Monastir | 2023/11/01 11:40 | Jean-Christian Morandais v Vit Kalina | 6-4,2-6,4-6 |
| ITF M15 Monastir | 2023/10/24 10:00 | Andrea Bacaloni v Vit Kalina | 6-3,7-6 |
| ITF M15 Monastir | 2023/10/04 14:55 | Vit Kalina v Kai Wehnelt | 1-6,4-6 |
| ITF M15 Monastir | 2023/10/02 12:30 | Daniel Salazar v Vit Kalina | 7-6,4-6,8-10 |