| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:17.89 | GMAC End of the Year Splash | 2025-06-07 |
| 100m Breaststroke | 1:38.59 | LAC - Nothers Fall Invitational | 2025-11-21 |
| 100m Butterfly | 1:22.47 | BAC SC Fall Invitational | 2025-11-07 |
| 100m Freestyle | 1:13.68 | LAC - Nothers Fall Invitational | 2025-11-21 |
| 100m IM | 1:23.45 | GMAC End of the Year Splash | 2025-06-07 |
| 200m Backstroke | 2:49.74 | BAC SC Fall Invitational | 2025-11-07 |
| 200m Freestyle | 2:41.33 | BAC SC Fall Invitational | 2025-11-07 |
| 200m IM | 2:58.67 | BAC SC Fall Invitational | 2025-11-07 |
| 50m Breaststroke | 43.60 | BAC SC Fall Invitational | 2025-11-07 |
| 50m Freestyle | 32.71 | BAC SC Fall Invitational | 2025-11-07 |
Perera, Nihinsa's top personal bests include 100m Backstroke (1:17.89), 100m Breaststroke (1:38.59), 100m Butterfly (1:22.47), 100m Freestyle (1:13.68), 100m IM (1:23.45).
Perera, Nihinsa swims for Guelph Marlin Aquatic Club.
Perera, Nihinsa has competed in 4 meets.