| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:15.95 | June Performance Meet 2025 | 2025-06-06 |
| 100m Backstroke | 1:11.46 | 2025 Alex Baumann Invitational | 2025-11-21 |
| 100m Breaststroke | 1:32.45 | 2025 Central Region Div 2 LC Championships | 2025-06-13 |
| 100m Butterfly | 1:19.70 | 2025 Central Region Div 2 LC Championships | 2025-06-13 |
| 100m Butterfly | 1:17.51 | 2025 MSSAC Harvest Invitational | 2025-11-01 |
| 100m Freestyle | 1:05.50 | 2025 Central Region Div 2 LC Championships | 2025-06-13 |
| 100m Freestyle | 1:03.27 | 2025 Alex Baumann Invitational | 2025-11-21 |
| 200m Backstroke | 2:43.67 | 2025 Central Region Div 1 LC Championships | 2025-06-20 |
| 200m Backstroke | 2:37.33 | 2025 MSSAC Harvest Invitational | 2025-11-01 |
| 200m Breaststroke | 3:23.16 | 2025 Central Region Div 2 LC Championships | 2025-06-13 |
| 200m Freestyle | 2:21.61 | 2025 Central Region Div 2 LC Championships | 2025-06-13 |
| 200m Freestyle | 2:21.23 | 2025 Alex Baumann Invitational | 2025-11-21 |
| 200m IM | 2:44.32 | 2026 BAD Spring Invitational Meet | 2026-03-06 |
| 400m Freestyle | 4:56.38 | 2025 Central Region Div 1 LC Championships | 2025-06-20 |
| 400m Freestyle | 4:56.50 | 2025 MSSAC Harvest Invitational | 2025-11-01 |
| 400m IM | 5:51.04 | 2025 Central Region Div 1 LC Championships | 2025-06-20 |
| 50m Backstroke | 32.64 | 2025 Alex Baumann Invitational | 2025-11-21 |
| 50m Butterfly | 31.60 | 2025 Alex Baumann Invitational | 2025-11-21 |
| 50m Freestyle | 30.05 | June Performance Meet 2025 | 2025-06-06 |
| 50m Freestyle | 29.27 | 2025 MSSAC Harvest Invitational | 2025-11-01 |
| 800m Freestyle | 10:16.03 | 2025 Alex Baumann Invitational | 2025-11-21 |
Nirwal, Nikhil's top personal bests include 100m Backstroke (1:15.95), 100m Backstroke (1:11.46), 100m Breaststroke (1:32.45), 100m Butterfly (1:19.70), 100m Butterfly (1:17.51).
Nirwal, Nikhil swims for Mississauga Aquatic Club.
Nirwal, Nikhil has competed in 10 meets.