| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:20.90 | KBM Heats & Finals | 2026-02-20 |
| 100m Breaststroke | 1:35.77 | KBM Heats & Finals | 2026-02-20 |
| 100m Butterfly | 1:28.13 | 2025 NKB Fall Invitational | 2025-10-17 |
| 100m Freestyle | 1:12.40 | 2026 Eastern Ontario Regional Championship - Winte | 2026-01-30 |
| 200m Backstroke | 2:53.24 | 2026 Eastern Ontario Regional Championship - Winte | 2026-01-30 |
| 200m Breaststroke | 3:27.86 | 2025 NKB Fall Invitational | 2025-10-17 |
| 200m Freestyle | 2:35.84 | Cornwall Snowflake Meet 2025 | 2025-11-07 |
| 400m Freestyle | 5:25.92 | 2026 Eastern Ontario Regional Championship - Winte | 2026-01-30 |
| 400m IM | 6:19.09 | KBM Heats & Finals | 2026-02-20 |
| 50m Backstroke | 38.71 | Cornwall Snowflake Meet 2025 | 2025-11-07 |
| 50m Breaststroke | 44.72 | 2025 NKB Fall Invitational | 2025-10-17 |
| 50m Butterfly | 35.57 | 2026 Eastern Ontario Regional Championship - Winte | 2026-01-30 |
| 50m Freestyle | 31.79 | 2026 Eastern Ontario Regional Championship - Winte | 2026-01-30 |
| 800m Freestyle | 11:35.97 | KBM Heats & Finals | 2026-02-20 |
Longtin, Gabrielle's top personal bests include 100m Backstroke (1:20.90), 100m Breaststroke (1:35.77), 100m Butterfly (1:28.13), 100m Freestyle (1:12.40), 200m Backstroke (2:53.24).
Longtin, Gabrielle swims for Cornwall Sea Lions.
Longtin, Gabrielle has competed in 5 meets.