Stadium: COURT 6 Round: 44 Ground: Hardcourt outdoor
| ITF M15 New Delhi | 2021/03/28 14:00 | Nitin Kumar Sinha v Digvijay Pratap Singh | 4-6,6-3,10-7 |
| ITF M15 Pune | 2021/03/21 09:15 | Nitin Kumar Sinha v Ishaque Eqbal | 6-7,6-7 |
| ITF M15 Indore | 2021/03/09 04:00 | Nitin Kumar Sinha v Oliver Crawford | 6-4,2-6,1-6 |
| ITF M15 Lucknow | 2021/03/03 07:40 | Aidan Mchugh v Nitin Kumar Sinha | 6-3,2-6,6-2 |
| ITF M15 Lucknow | 2021/03/01 04:00 | Nitin Kumar Sinha v Atharva Sharma | 6-2,6-1 |
| ITF M15 Lucknow | 2021/02/28 04:00 | Nitin Kumar Sinha v Arjun Mahadevan | 6-3,6-1 |
| ITF M15 Sharm El Sheikh | 2021/02/22 13:00 | Andres Gabriel Ciurletti v Nitin Kumar Sinha | 6-1,0-6,12-10 |
| ITF M15 Sharm El Sheikh | 2021/02/21 15:30 | Cristian Campese v Nitin Kumar Sinha | 3-6,0-6 |
| ITF M15 New Delhi | 2021/03/28 13:00 | Leonardo Catani v Henry Patten | 2-6,3-6 |
| ITF M15 New Delhi | 2021/03/28 07:30 | Parikshit Somani v Henry Patten | 1-6,4-6 |
| ITF M15 Pune | 2021/03/26 07:30 | Henry Patten v Manish Sureshkumar | 6-3,6-7,4-6 |
| ITF M15 Pune | 2021/03/25 04:30 | Dalibor Svrcina v Henry Patten | 6-4,4-6,1-6 |
| ITF M15 Pune | 2021/03/22 05:50 | Henry Patten v Leonardo Catani | 6-2,6-4 |
| ITF M15 Pune | 2021/03/21 07:00 | Henry Patten v Arjun Mahadevan | 6-1,6-3 |
| ITF M15 Lucknow | 2021/02/28 05:40 | Henry Patten v Osgar O'Hoisin | 6-3,6-7,8-10 |
| ITF M15 Heraklion | 2020/11/27 09:30 | Mateus Alves v Henry Patten | 7-6,7-6 |