| ATP Monte-Carlo | 04/11 11:15 | 25 | [7] Holger Rune v Sumit Nagal [93] | 6-3,3-6,6-2 | |
| ATP Monte-Carlo | 04/08 10:20 | 24 | [38] Matteo Arnaldi v Sumit Nagal [93] | 7-5,2-6,4-6 | |
| ATP Monte-Carlo | 04/07 09:00 | 19 | [55] Facundo Diaz Acosta v Sumit Nagal [95] | 5-7,6-2,2-6 | |
| ATP Monte-Carlo | 04/06 09:00 | 14 | [95] Sumit Nagal v Flavio Cobolli [63] | 6-2,6-3 | |
| ATP Marrakech | 04/03 11:00 | 26 | [95] Sumit Nagal v Lorenzo Sonego [61] | 6-1,3-6,4-6 | |
| ATP Marrakech | 04/02 10:30 | 25 | [99] Corentin Moutet v Sumit Nagal [95] | 6-4,3-6,2-6 | |
| ATP Miami | 03/19 15:00 | 15 | [212] Coleman Wong v Sumit Nagal [97] | 3-6,6-1,7-5 | |
| ATP Miami | 03/18 15:00 | 14 | [133] Gabriel Diallo v Sumit Nagal [97] | 6-7,2-6 | |
| ATP Indian Wells | 03/08 02:00 | 23 | [224] Milos Raonic v Sumit Nagal [101] | 6-3,6-3 | |
| ATP Indian Wells | 03/05 18:00 | 15 | [101] Sumit Nagal v Seongchan Hong [227] | 6-2,2-6,6-7 | |
| ATP Indian Wells | 03/04 18:00 | 14 | Sumit Nagal v Stefan Dostanic | 6-2,6-2 | |
| ATP Dubái | 02/27 16:45 | 25 | [97] Sumit Nagal v Lorenzo Sonego [48] | 4-6,7-5,1-6 | |
| Challenger de Pune | 02/22 12:05 | 26 | [98] Sumit Nagal v Niki Kaliyanda Poonacha [138] | 4-6,3-6 | |
| Challenger de Pune | 02/20 09:30 | 25 | [98] Sumit Nagal v Yu Hsiou Hsu [228] | 7-6,6-4 | |
| Challenger Bengaluru | 02/17 12:30 | 28 | [204] Stefano Napolitano v Sumit Nagal [98] | 7-6,6-4 | |
| Challenger Bengaluru | 02/16 14:55 | 27 | [153] Adam Walton v Sumit Nagal [98] | 5-7,2-6 | |
| Challenger Bengaluru | 02/15 12:45 | 26 | [244] Coleman Wong v Sumit Nagal [98] | 2-6,5-7 | |
| Challenger Bengaluru | 02/13 13:00 | 25 | [274] Geoffrey Blancaneaux v Sumit Nagal [98] | 2-6,2-6 | |
| Challenger de Chennai | 02/11 11:30 | 29 | [114] Luca Nardi v Sumit Nagal [121] | 1-6,4-6 | |
| Challenger de Chennai | 02/10 09:30 | 28 | [186] Dalibor Svrcina v Sumit Nagal [121] | 3-6,4-6 | |
| Challenger de Chennai | 02/09 09:30 | 27 | [331] Dominik Palan v Sumit Nagal [121] | 3-6,3-6 | |
| Challenger de Chennai | 02/07 09:30 | 26 | [270] Giovanni Fonio v Sumit Nagal [121] | 5-7,2-6 | |
| Challenger de Chennai | 02/06 10:55 | 25 | [311] S D Prajwal Dev v Sumit Nagal [121] | 1-6,2-6 | |
| Open de Australia | 01/18 05:35 | 24 | [137] Sumit Nagal v Juncheng Shang [140] | 6-2,3-6,5-7,4-6 | |
| Open de Australia | 01/16 04:00 | 23 | [27] Alexander Bublik v Sumit Nagal [137] | 4-6,2-6,6-7 | |
| Open de Australia | 01/12 04:00 | 19 | [118] Alex Molcan v Sumit Nagal [139] | 4-6,4-6 | |
| Open de Australia | 01/11 04:30 | 15 | [422] Edward Winter v Sumit Nagal [139] | 3-6,2-6 | |
| Open de Australia | 01/10 02:30 | 14 | [238] Geoffrey Blancaneaux v Sumit Nagal [139] | 3-6,5-7 | |
| Challenger de Canberra | 01/02 01:30 | 25 | [157] Andrea Vavassori v Sumit Nagal [138] | 6-7,6-4,7-5 | |
| Challenger de Maspalomas | 11/30 10:00 | 26 | [434] Imanol L Morillo v Sumit Nagal [140] | 3-6,6-4,7-5 |
Sumit Nagal (Jhajjar, 16 de agosto de 1997) es un tenista indio.
Ganó el título junior de dobles masculino de Wimbledon 2015, convirtiéndose así en el sexto jugador indio en ganar un título de Grand Slam junior. Es el segundo tenista individual indio mejor clasificado y, desde 2018, ha sido miembro habitual del equipo nacional de la Copa Davis de su país.
Ha obtenido dos títulos Challenger y 9 de ITF.