Stadium: Court 5 Round: 25 Ground: Clay
| ITF India F4 | 2016/09/05 05:30 | Rishab Agarwal v Nitin Kumar Sinha | 2-6,7-5,5-7 |
| ITF - M15 Monastir | 2021/08/16 07:30 | Rishab Agarwal v Ishaan Ravichander | 6-7,6-2,7-10 |
| ITF - M15 Monastir | 2021/08/15 08:30 | Rishab Agarwal v Nicolas Hollender | 6-0,6-1 |
| ITF - M15 Monastir | 2021/08/11 18:00 | Mohamed Aziz Dougaz v Rishab Agarwal | 6-4,7-5 |
| ITF - M15 Monastir | 2021/08/10 07:30 | Rishab Agarwal v Seita Watanabe | 6-4,6-2 |
| ITF - M15 Monastir | 2021/08/09 08:30 | Rishab Agarwal v Martin Dimitrov | 6-2,6-1 |
| ITF - M15 Monastir | 2021/08/08 10:30 | Rishab Agarwal v Rishi Reddy | 4-6,6-4,11-9 |
| ITF - M15 Monastir | 2021/08/04 07:30 | Rishab Agarwal v Erik Crepaldi | 4-6,5-7 |
| ITF - M15 Monastir | 2021/08/03 07:30 | Rishab Agarwal v Pietro Marino | 6-7,3-6 |
| ITF - M15 Káhira | 2021/09/01 09:50 | Valerio Aboian v Nitin Kumar Sinha | 6-4,6-1 |
| ITF - M15 Naí Dillí | 2021/04/01 06:00 | Aidan Mchugh v Nitin Kumar Sinha | 5-7,7-6,7-6 |
| ITF - M15 Naí Dillí | 2021/03/31 04:00 | Nitin Kumar Sinha v Abhinav Sanjeev Shanmugam | 6-2,6-0 |
| ITF - M15 Naí Dillí | 2021/03/30 04:00 | Nitin Kumar Sinha v Henry Patten | 1-6,4-6 |
| ITF - M15 Naí Dillí | 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 |