| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:24.59 | 2026 Sask Open Short Course Junior Provincials | 2026-02-27 |
| 100m Freestyle | 1:15.52 | 2026 Sask Open Short Course Junior Provincials | 2026-02-27 |
| 1500m Freestyle | 7:35.13 | Anna Rondeau Memorial Challenge 2026 | 2026-04-24 |
| 200m Backstroke | 2:59.28 | 2026 Sask Open Short Course Junior Provincials | 2026-02-27 |
| 200m Butterfly | 3:57.03 | Anna Rondeau Memorial Challenge | 2025-06-08 |
| 200m Freestyle | 2:46.28 | 2026 Sask Open Short Course Junior Provincials | 2026-02-27 |
| 400m IM | 7:04.32 | Anna Rondeau Memorial Challenge 2026 | 2026-04-24 |
| 50m Backstroke | 39.38 | RODS Last Chance Time Trial | 2026-03-02 |
| 50m Breaststroke | 43.72 | 2026 Sask Open Short Course Junior Provincials | 2026-02-27 |
| 50m Butterfly | 40.69 | 2026 Sask Open Short Course Junior Provincials | 2026-02-27 |
| 50m Freestyle | 33.53 | Regina Racing Series #2 | 2025-06-07 |
Mazhandu, Samantha's top personal bests include 100m Backstroke (1:24.59), 100m Freestyle (1:15.52), 1500m Freestyle (7:35.13), 200m Backstroke (2:59.28), 200m Butterfly (3:57.03).
Mazhandu, Samantha swims for Regina Optimist Dolphins Swim Team.
Mazhandu, Samantha has competed in 6 meets.