| Challenger de Banja Luka | 09/14 09:00 | 28 | [174] Sumit Nagal v Filip Horansky [189] | 7-6,6-2 | |
| Challenger de Banja Luka | 09/13 12:15 | 27 | [174] Sumit Nagal v Federico Coria [155] | 6-2,7-5 | |
| Challenger de Banja Luka | 09/12 08:30 | 26 | Sumit Nagal v Matija Pecotic | 6-1,6-1 | |
| Challenger de Banja Luka | 09/11 08:00 | 25 | [174] Sumit Nagal v Ivan Nedelko [343] | 6-3,7-6 | |
| Challenger de Génova | 09/02 09:20 | 24 | [190] Sumit Nagal v Giulio Zeppieri [470] | 1-6,5-7 | |
| US Open | 08/27 01:00 | 23 | [3] Roger Federer v Sumit Nagal [190] | 4-6,6-1,6-2,6-4 | |
| US Open | 08/23 18:20 | 46 | [210] Joao Menezes v Sumit Nagal [190] | 7-5,4-6,3-6 | |
| US Open | 08/22 15:00 | 45 | [192] Peter Polansky v Sumit Nagal [190] | 5-7,6-7 | |
| US Open | 08/20 19:40 | 44 | [190] Sumit Nagal v Tatsuma Ito [133] | 7-6,6-2 | |
| ATP Hamburgo | 07/23 10:50 | 25 | [207] Sumit Nagal v Richard Gasquet [65] | 2-6,6-7 | |
| ATP Hamburgo | 07/21 10:00 | 164 | Alejandro D-Fokina v Sumit Nagal | 3-6,5-7 | |
| ATP Hamburgo | 07/20 09:30 | 64 | [205] Sumit Nagal v Sebastian Ofner [138] | 7-5,6-2 | |
| Challenger de Milán | 06/29 14:00 | 28 | [285] Danilo Petrovic v Sumit Nagal [224] | 7-5,6-2 | |
| Challenger de Milán | 06/28 16:00 | 27 | [224] Sumit Nagal v Aslan Karatsev [343] | 6-4,7-6 | |
| Challenger de Milán | 06/27 15:40 | 26 | [224] Sumit Nagal v Martin Cuevas [329] | Retired | |
| Challenger de Milán | 06/25 15:20 | 25 | [224] Sumit Nagal v Laurynas Grigelis [293] | 6-2,6-3 | |
| Challenger de Bratislava | 06/22 13:05 | 28 | [251] Sumit Nagal v Norbert Gombos [202] | 1-6,6-4,2-6 | |
| Challenger de Bratislava | 06/21 14:00 | 27 | [251] Sumit Nagal v Andrej Martin [126] | 6-4,6-2 | |
| Challenger de Bratislava | 06/20 16:25 | 26 | [56] Martin Klizan v Sumit Nagal [251] | 6-1,1-6,6-7 | |
| Challenger de Bratislava | 06/19 11:40 | 25 | [445] Gerard Granollers v Sumit Nagal [251] | 3-6,1-6 | |
| Challenger de Lyon | 06/15 10:15 | 28 | [272] Sumit Nagal v Elias Ymer [140] | 1-6,1-6 | |
| Challenger de Lyon | 06/14 12:00 | 27 | [101] Albert Ramos-Vinolas v Sumit Nagal [272] | 5-7,6-7 | |
| Challenger de Lyon | 06/13 09:55 | 26 | [263] Uladzimir Ignatik v Sumit Nagal [272] | 1-6,6-3,3-6 | |
| Challenger de Lyon | 06/12 08:00 | 25 | [272] Sumit Nagal v Quentin Halys [159] | 6-3,6-2 | |
| Challenger de Lyon | 06/10 12:25 | 24 | [272] Sumit Nagal v Hugo Nys [335] | 6-4,6-2 | |
| Challenger de Poznan | 06/05 12:20 | 25 | [164] Alessandro Giannessi v Sumit Nagal [280] | 7-5,3-6,6-3 | |
| Challenger de Poznan | 06/04 08:00 | 24 | [192] Constant Lestienne v Sumit Nagal [280] | 3-6,7-5,3-6 | |
| Challenger de Samarcanda | 05/18 11:15 | 28 | [355] Joao Menezes v Sumit Nagal [303] | 5-7,6-4,6-3 | |
| Challenger de Samarcanda | 05/17 06:00 | 27 | [300] Roberto Ortega-Olmedo v Sumit Nagal [303] | 5-7,4-6 | |
| Challenger de Samarcanda | 05/16 09:00 | 26 | [303] Sumit Nagal v Dmitry Popko [359] | 7-6,6-3 |
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.