| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Freestyle | 1:46.79 | GO Polar Bear Invitational 2026 | 2026-01-16 |
| 25m Backstroke | 26.48 | GO King & Queen of the Pool - Pentathlon 2025 | 2025-10-18 |
| 25m Breaststroke | 31.65 | GO King & Queen of the Pool - Pentathlon 2025 | 2025-10-18 |
| 25m Butterfly | 25.47 | GO King & Queen of the Pool - Pentathlon 2025 | 2025-10-18 |
| 50m Breaststroke | 1:01.04 | GO Polar Bear Invitational 2026 | 2026-01-16 |
| 50m Butterfly | 1:01.86 | GO Polar Bear Invitational 2026 | 2026-01-16 |
| 50m Freestyle | 48.98 | GO King & Queen of the Pool - Pentathlon 2025 | 2025-10-18 |
Mahumane, Dahlia's top personal bests include 100m Freestyle (1:46.79), 25m Backstroke (26.48), 25m Breaststroke (31.65), 25m Butterfly (25.47), 50m Breaststroke (1:01.04).
Mahumane, Dahlia swims for Greater Ottawa Kingfish Swim Club.
Mahumane, Dahlia has competed in 2 meets.