| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Breaststroke | 1:25.93 | 2026 Manta Grand Prix | 2026-02-20 |
| 100m Butterfly | 1:20.75 | Edmonton Open 2026 | 2026-01-30 |
| 100m Butterfly | 1:14.89 | 2025 Prairie Winter International | 2025-12-11 |
| 100m Freestyle | 1:09.37 | Edmonton Open 2026 | 2026-01-30 |
| 100m Freestyle | 1:08.40 | 2026 Manta Grand Prix | 2026-02-20 |
| 100m IM | 1:18.53 | Bison Sprint IM Invitational | 2026-01-10 |
| 200m Butterfly | 3:06.09 | St. James Seals Invitational | 2026-01-23 |
| 200m IM | 2:52.71 | Edmonton Open 2026 | 2026-01-30 |
| 200m IM | 2:46.14 | Seals West Side Challenge | 2025-11-28 |
| 50m Backstroke | 34.42 | Seals West Side Challenge | 2025-11-28 |
| 50m Breaststroke | 41.90 | Edmonton Open 2026 | 2026-01-30 |
| 50m Breaststroke | 40.96 | Bison Sprint IM Invitational | 2026-01-10 |
| 50m Butterfly | 33.68 | Edmonton Open 2026 | 2026-01-30 |
| 50m Butterfly | 32.66 | Seals West Side Challenge | 2025-11-28 |
| 50m Freestyle | 30.65 | 2025 Prairie Winter International | 2025-12-11 |
Isla Rivers's top personal bests include 100m Breaststroke (1:25.93), 100m Butterfly (1:20.75), 100m Butterfly (1:14.89), 100m Freestyle (1:09.37), 100m Freestyle (1:08.40).
Isla Rivers swims for University of Manitoba.
Isla Rivers has competed in 9 meets.