| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:16.82 | 2026 Steve Kingston Memorial | 2026-03-06 |
| 100m Breaststroke | 1:33.12 | PICK Lisa Flood Classic 2025 | 2025-12-05 |
| 100m Butterfly | 1:23.67 | PICK Lisa Flood Classic 2025 | 2025-12-05 |
| 100m Freestyle | 1:06.40 | Scar Pan Am Winter Classic | 2026-01-16 |
| 100m Freestyle | 1:05.37 | 2026 Central Region Div 2 SC Championships | 2026-02-20 |
| 200m Backstroke | 2:50.29 | Winter Swimfest 2026 | 2026-01-24 |
| 200m Freestyle | 2:27.48 | Scar Pan Am Winter Classic | 2026-01-16 |
| 200m Freestyle | 2:23.09 | 2026 Steve Kingston Memorial | 2026-03-06 |
| 200m IM | 2:48.03 | Scar Pan Am Winter Classic | 2026-01-16 |
| 200m IM | 2:45.80 | PICK Lisa Flood Classic 2025 | 2025-12-05 |
| 400m Freestyle | 5:05.33 | Scar Pan Am Winter Classic | 2026-01-16 |
| 400m Freestyle | 5:06.35 | Winter Swimfest 2026 | 2026-01-24 |
| 400m IM | 5:52.20 | Winter Swimfest 2026 | 2026-01-24 |
| 50m Backstroke | 36.33 | Scar Pan Am Winter Classic | 2026-01-16 |
| 50m Breaststroke | 42.53 | Scar Pan Am Winter Classic | 2026-01-16 |
| 50m Breaststroke | 40.57 | 2026 Steve Kingston Memorial | 2026-03-06 |
| 50m Butterfly | 34.57 | Scar Pan Am Winter Classic | 2026-01-16 |
| 50m Butterfly | 35.01 | PICK Lisa Flood Classic 2025 | 2025-12-05 |
| 50m Freestyle | 31.25 | Scar Pan Am Winter Classic | 2026-01-16 |
| 50m Freestyle | 30.85 | 2026 Central Region Div 2 SC Championships | 2026-02-20 |
Gillis, Gabriel's top personal bests include 100m Backstroke (1:16.82), 100m Breaststroke (1:33.12), 100m Butterfly (1:23.67), 100m Freestyle (1:06.40), 100m Freestyle (1:05.37).
Gillis, Gabriel swims for Pickering Swim Club Inc.
Gillis, Gabriel has competed in 9 meets.