Stadium: Court 2 Round: 54 Ground: Hardcourt outdoor
| ITF Thailand F3 | 2018/09/02 02:00 | Sam Ryan Ziegann v Krittin Koaykul | 6-7,1-6 |
| ITF M15 Nakhon Si Thammarat Qual | 2024/07/14 02:00 | Sam Ryan Ziegann v Yu Hsiang Su | 6-2,6-2 |
| ITF M15 Nakhon Si Thammarat | 2024/07/11 05:35 | Sam Ryan Ziegann v Pawit Sornlaksup | 5-7,4-6 |
| ITF M15 Nakhon Si Thammarat | 2024/07/10 07:10 | Sam Ryan Ziegann v Matteo Lavizzari | 7-6,6-1 |
| ITF M15 Nakhon Si Thammarat Qual | 2024/07/08 04:55 | Sam Ryan Ziegann v Sungbeen Sim | 2-6,7-5,10-8 |
| ITF M15 Nakhon Si Thammarat Qual | 2024/07/08 01:55 | Sam Ryan Ziegann v Poonthong Komopisut | 6-3,7-6 |
| UTR Pro Kawaguchi | 2024/06/29 07:30 | Ryotaro Matsumura v Sam Ryan Ziegann | 7-6,6-1 |
| UTR Pro Kawaguchi | 2024/06/27 00:30 | Sam Ryan Ziegann v Elijah Cham | 7-6,7-5 |
| UTR Pro Kawaguchi | 2024/06/26 03:17 | Sam Ryan Ziegann v Hiiro Sakamoto | 6-4,6-4 |
| ITF M15 Nakhon Si Thammarat Qual | 2024/07/14 03:55 | Taentawan T M Maggioli v Krittin Koaykul | 2-6,1-6 |
| ITF M15 Nakhon Si Thammarat | 2024/07/11 02:00 | Krittin Koaykul v Thanapet Chanta | 2-6,2-6 |
| ITF M15 Nakhon Si Thammarat | 2024/07/09 03:30 | Krittin Koaykul v Natthayut Nithithananont | 6-2,6-3 |
| ITF M15 Nakhon Si Thammarat Qual | 2024/02/25 06:30 | Leo Vithoontien v Krittin Koaykul | 6-2,6-7,11-9 |
| ITF M15 Nakhon Si Thammarat Qual | 2024/02/18 03:50 | Leo Vithoontien v Krittin Koaykul | 6-4,6-4 |
| ITF M15 Nakhon Si Thammarat | 2024/02/14 04:45 | Orel Kimhi v Krittin Koaykul | 6-4,6-0 |
| ITF M15 Nakhon Si Thammarat | 2024/02/12 04:45 | Jumpei Yamasaki v Krittin Koaykul | 4-6,3-6 |
| ITF M15 Nakhon Si Thammarat | 2024/02/11 04:00 | Pannawat Suttisomboon v Krittin Koaykul | 4-6,3-6 |