| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:50.35 | RHAC Winter Jr. Sprint | 2025-12-20 |
| 100m Breaststroke | 1:57.83 | 2026 Steve Kingston Memorial | 2026-03-06 |
| 100m Freestyle | 1:25.71 | 2026 Steve Kingston Memorial | 2026-03-06 |
| 100m IM | 1:39.06 | 2026 Steve Kingston Memorial | 2026-03-06 |
| 200m Backstroke | 4:11.57 | RHAC Fall Classic 2025 | 2025-10-24 |
| 200m Breaststroke | 4:43.52 | RHAC June Time Trial 2025 | 2025-06-13 |
| 200m Freestyle | 3:26.34 | 2026 Steve Kingston Memorial | 2026-03-06 |
| 200m IM | 4:17.32 | RHAC June Time Trial 2025 | 2025-06-13 |
| 400m Freestyle | 7:44.39 | RHAC Fall Classic 2025 | 2025-10-24 |
| 50m Backstroke | 50.67 | 2025 Alan Swanston Classic | 2025-12-05 |
| 50m Breaststroke | 51.15 | 2026 Steve Kingston Memorial | 2026-03-06 |
| 50m Butterfly | 49.22 | 2025 Alan Swanston Classic | 2025-12-05 |
| 50m Freestyle | 38.14 | 2026 Steve Kingston Memorial | 2026-03-06 |
Gan, Tessa's top personal bests include 100m Backstroke (1:50.35), 100m Breaststroke (1:57.83), 100m Freestyle (1:25.71), 100m IM (1:39.06), 200m Backstroke (4:11.57).
Gan, Tessa swims for The Richmond Hill Aquatic Club.
Gan, Tessa has competed in 7 meets.