Stadium: Court 5 Round: 25 Ground: Clay
| ITF M25 Vero Beach | 2021/10/19 16:00 | Hugo Cazaban v Credit Chaiyarin | 4-6,4-6 |
| ITF M25 Vero Beach | 2021/10/18 16:00 | Martin Maldonado v Credit Chaiyarin | 0-6,3-6 |
| ITF M15 Naples | 2021/10/13 14:55 | Credit Chaiyarin v Jake Van Emburgh | 4-6,3-6 |
| ITF M15 Naples | 2021/10/12 13:30 | Marco De Rossi v Credit Chaiyarin | 3-6,6-4,10-6 |
| ITF M15 Naples | 2021/10/11 13:30 | Anton Semenov v Credit Chaiyarin | 3-6,5-7 |
| ITF M15 Monastir | 2021/09/29 08:00 | Credit Chaiyarin v Wissam Abderrahman | 3-6,6-3,6-7 |
| ITF M15 Monastir | 2021/09/28 08:00 | Mayeul Darras v Credit Chaiyarin | 3-6,6-3,3-10 |
| ITF M15 Monastir | 2021/09/26 10:30 | Zakai Stone v Credit Chaiyarin | 6-4,2-6,7-10 |
| ITF M25 Tulsa | 2021/06/14 22:00 | Benjamin Kittay v Ezekiel Clark | 6-4,1-6,4-10 |
| ITF M25 Pensacola | 2021/05/17 14:30 | Benjamin Kittay v Kiranpal Pannu | 2-6,2-6 |
| ITF M25 Naples | 2021/02/22 16:00 | Benjamin Kittay v Rinky Hijikata | 2-6,6-7 |