Stadium: Court 2 Round: 25 Ground: Hardcourt outdoor
| ITF Sri Lanka F3 | 2018/06/28 04:00 | Abhinav Sanjeev Shanmugam v Nitin Kumar Sinha | 4-6,4-6 |
| ITF India F6 | 2015/05/24 05:00 | Abhinav Sanjeev Shanmugam v Nitin Kumar Sinha | 3-6,3-6 |
| ITF M15 New Delhi | 2021/03/30 04:00 | Nitin Kumar Sinha v Henry Patten | 1-6,4-6 |
| 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 Pune | 2021/03/24 04:00 | Zane Khan v Abhinav Sanjeev Shanmugam | 6-2,6-0 |
| ITF M15 Sharm El Sheikh | 2021/02/15 09:30 | Francesco Vilardo v Abhinav Sanjeev Shanmugam | 6-1,7-6 |
| ITF M15 Sharm El Sheikh | 2021/02/14 13:00 | Abhinav Sanjeev Shanmugam v Zakai Stone | 6-1,6-3 |
| ITF M15 Sharm El Sheikh | 2021/02/07 15:30 | Abhinav Sanjeev Shanmugam v Fabian Marozsan | 1-6,4-6 |
| ITF M15 Sharm El Sheikh | 2021/02/02 07:30 | Fabian Marozsan v Abhinav Sanjeev Shanmugam | 6-1,7-6 |
| ITF M15 Sharm El Sheikh | 2021/02/01 10:30 | Abhinav Sanjeev Shanmugam v Kristof Minarik | 7-6,6-3 |
| ITF M15 Sharm El Sheikh | 2021/01/31 10:30 | Abhinav Sanjeev Shanmugam v Zsombor Velcz | 6-4,6-2 |
| ITF M15 Cairo | 2020/12/07 08:00 | Abhinav Sanjeev Shanmugam v Ivan Denisov | 3-6,6-3,6-10 |