Stadium: Court 1 Round: 54 Ground: Hardcourt outdoor
| ITF M25 Hua Hin | 2023/11/14 04:25 | Tsung-Hao Huang v Natthasith Kunsuwan | 3-6,6-4,6-1 |
| ITF M25 Hua Hin | 2023/11/13 04:20 | Thantub Suksumrarn v Natthasith Kunsuwan | 6-2,6-2 |
| ITF M15 Hua Hin | 2023/11/09 03:00 | Natthasith Kunsuwan v Bang Shuo Yin | 7-6,0-6,3-6 |
| ITF M15 Hua Hin | 2023/11/07 03:00 | Yunseok Jang v Natthasith Kunsuwan | 4-6,4-6 |
| ITF M15 Hua Hin | 2023/11/06 05:35 | Zongbing Yu v Natthasith Kunsuwan | 4-6,4-6 |
| ITF M15 Hua Hin | 2023/11/05 06:35 | Alexey Shtengelov v Natthasith Kunsuwan | 6-2,1-6,3-10 |
| ITF M15 Nakhon Si Thammarat | 2023/09/06 03:50 | Sidharth Rawat v Natthasith Kunsuwan | 6-2,6-0 |
| ITF M15 Nakhon Si Thammarat Qual | 2023/09/04 02:00 | Faisal Qamar v Natthasith Kunsuwan | 4-6,2-6 |
| ITF M15 Monastir | 2023/11/08 08:30 | Juan Bautista Otegui v Maik Steiner | 6-7,6-4,7-5 |
| ITF M15 Monastir | 2023/10/17 09:30 | Adrien Gobat v Maik Steiner | 7-6,6-4 |
| ITF M15 Monastir | 2023/10/10 08:00 | Cyril Vandermeersch v Maik Steiner | 6-4,4-6,6-3 |
| ITF M15 Bad Waltersdorf | 2023/10/05 09:15 | Maik Steiner v David Pichler | 4-6,0-6 |
| ITF M15 Bad Waltersdorf | 2023/10/04 10:20 | Maik Steiner v Yvo Panak | 6-3,6-3 |
| ITF M15 Satu Mare | 2023/09/15 09:00 | Stefan Palosi v Maik Steiner | 7-5,7-5 |
| ITF M15 Satu Mare | 2023/09/14 08:15 | Vitek Horak v Maik Steiner | 4-6,3-6 |
| ITF M15 Satu Mare | 2023/09/13 13:35 | Dragos N Cazacu v Maik Steiner | 3-6,6-3,4-6 |