| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Freestyle | 1:04.97 | ASSA Provincial Championships | 2025-08-01 |
| 100m IM | 1:26.61 | Peace River Porpoises/Smoky River Manatees Invite | 2025-06-28 |
| 200m IM | 3:14.10 | Grimshaw Gators Invitational | 2025-07-05 |
| 50m Backstroke | 37.29 | ASSA Provincial Championships | 2025-08-01 |
| 50m Breaststroke | 40.91 | ASSA Provincial Championships | 2025-08-01 |
| 50m Butterfly | 34.68 | Grande Prairie Aquarians / Spirit River Sea Wolves | 2025-06-21 |
| 50m Freestyle | 27.35 | ASSA Provincial Championships | 2025-08-01 |
Pimm, William's top personal bests include 100m Freestyle (1:04.97), 100m IM (1:26.61), 200m IM (3:14.10), 50m Backstroke (37.29), 50m Breaststroke (40.91).
Pimm, William swims for Grimshaw Gators.
Pimm, William has competed in 5 meets.