Stadium: Court 3 Round: 44 Ground: Hardcourt outdoor
| ITF M15 Monastir | 2021/10/25 10:00 | Natthasith Kunsuwan v Xian Yao Zhou | 3-6,6-7 |
| ITF M15 Monastir | 2021/10/20 14:30 | Natthasith Kunsuwan v Sascha Gueymard Wayenburg | 1-6,2-6 |
| ITF M15 Monastir | 2021/10/18 14:00 | Natthasith Kunsuwan v Stefano D'Agostino | 6-7,3-6 |
| ITF M15 Monastir | 2021/10/18 09:30 | Natthasith Kunsuwan v Josh Reid | 7-5,6-1 |
| ITF M15 Monastir | 2021/10/04 13:00 | Thanapet Chanta v Natthasith Kunsuwan | 6-2,6-4 |
| ITF M15 Monastir | 2021/10/04 09:00 | Aaditya Tewari v Natthasith Kunsuwan | 0-6,2-6 |
| ITF M15 Monastir | 2021/09/27 08:00 | Geni Inoue v Natthasith Kunsuwan | 6-2,6-0 |
| ITF M15 Monastir | 2021/09/21 08:00 | Daisuke Sumizawa v Natthasith Kunsuwan | 6-2,3-6,7-10 |
| ITF M15 Doha | 2021/12/20 15:45 | Nico Hornitschek v Digvijay Pratap Singh | 6-3,6-3 |
| ITF M15 Doha Qual | 2021/12/19 19:05 | Kris Krawcewicz v Digvijay Pratap Singh | 4-6,2-6 |
| ITF M15 Doha | 2021/12/15 16:35 | Digvijay Pratap Singh v Mukund Sasikumar | 6-4,3-6,2-6 |
| ITF M15 Doha | 2021/12/14 12:00 | Digvijay Pratap Singh v Theo Arribage | 6-3,3-6,11-9 |
| ITF M15 Doha | 2021/12/13 12:00 | Digvijay Pratap Singh v Theertha Shashank Macherla | 6-0,6-3 |
| ITF M15 Gurugram | 2021/11/25 05:55 | Digvijay Pratap Singh v Zsombor Velcz | 6-7,4-6 |
| ITF M15 Gurugram | 2021/11/24 07:15 | Lakshya Gupta v Digvijay Pratap Singh | 5-7,7-5,1-6 |
| ITF M15 New Delhi | 2021/11/18 04:00 | Digvijay Pratap Singh v Dev Javia | 6-3,4-6,2-6 |