| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Breaststroke | 2:11.23 | Bluefins Fall Pentathlon | 2025-11-14 |
| 100m Freestyle | 1:37.04 | Hard off the Block Invitational | 2026-02-20 |
| 100m IM | 1:48.71 | Icebreaker Invitational | 2026-01-30 |
| 200m Backstroke | 3:49.08 | Hard off the Block Invitational | 2026-02-20 |
| 200m Freestyle | 3:25.63 | Winter Waves Invitational | 2026-03-13 |
| 200m IM | 3:59.40 | Winter Waves Invitational | 2026-03-13 |
| 50m Backstroke | 50.98 | Hard off the Block Invitational | 2026-02-20 |
| 50m Breaststroke | 58.90 | Icebreaker Invitational | 2026-01-30 |
| 50m Butterfly | 56.22 | Winter Waves Invitational | 2026-03-13 |
| 50m Freestyle | 40.31 | Icebreaker Invitational | 2026-01-30 |
Howard, Isla's top personal bests include 100m Breaststroke (2:11.23), 100m Freestyle (1:37.04), 100m IM (1:48.71), 200m Backstroke (3:49.08), 200m Freestyle (3:25.63).
Howard, Isla swims for Mount Pearl Marlins.
Howard, Isla has competed in 4 meets.