Stadium: Court 6 Round: 44 Ground: Hardcourt outdoor
| ITF M15 Chiang Rai | 2022/04/03 03:10 | Natthayut Nithithananont v Gunjan Jadhav | 1-6,3-6 |
| ITF M15 Monastir | 2021/12/05 11:30 | Alessandro Bellifemine v Natthayut Nithithananont | 6-1,6-0 |
| ITF M15 Monastir | 2021/11/28 09:30 | Antoine Berger v Natthayut Nithithananont | 7-5,6-1 |
| ITF M15 Monastir | 2021/11/21 11:00 | Shohei Chikami v Natthayut Nithithananont | 6-2,6-0 |
| ITF M15 Monastir | 2021/11/14 11:00 | Nikita Volonski v Natthayut Nithithananont | 6-1,6-1 |
| ITF M15 Monastir | 2021/11/08 09:00 | Lorenzo Vatteroni v Natthayut Nithithananont | 7-5,6-4 |
| ITF M15 Monastir | 2021/10/31 10:00 | Natthayut Nithithananont v Pietro Pampanin | 1-6,4-6 |
| ITF M15 Monastir | 2021/10/25 09:00 | Natthayut Nithithananont v Zakai Stone | 0-6,3-6 |
| ITF M15 Chiang Rai Qual | 2022/04/10 02:00 | S D Prajwal Dev v Suphawat Saeoui | 6-2,6-1 |
| ITF M15 Chiang Rai | 2022/04/04 06:55 | Suphawat Saeoui v Thanapet Chanta | 3-6,1-6 |
| ITF M15 Chiang Rai | 2022/04/03 06:50 | Marut Klaoklaong v Suphawat Saeoui | 5-7,1-6 |