| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:24.36 | BC Winter Divisionals - Island & Coastal Vancouver | 2026-02-20 |
| 100m Butterfly | 1:32.23 | 2025 PCS Xmas Cracker | 2025-12-05 |
| 100m Freestyle | 1:11.09 | BC Winter Divisionals - Island & Coastal Vancouver | 2026-02-20 |
| 200m Backstroke | 3:04.34 | Mies Schootman Invitational 2026 | 2026-01-16 |
| 200m Butterfly | 3:43.89 | Mies Schootman Invitational 2026 | 2026-01-16 |
| 200m Freestyle | 2:39.94 | BC Winter Divisionals - Island & Coastal Vancouver | 2026-02-20 |
| 200m IM | 3:02.67 | Delta March LMR | 2026-03-14 |
| 400m Freestyle | 5:34.60 | BC Winter Divisionals - Island & Coastal Vancouver | 2026-02-20 |
| 400m IM | 6:43.56 | SKSC Fallfest | 2025-11-22 |
| 50m Backstroke | 40.24 | Mies Schootman Invitational 2026 | 2026-01-16 |
| 50m Breaststroke | 47.44 | Delta March LMR | 2026-03-14 |
| 50m Butterfly | 38.22 | Delta March LMR | 2026-03-14 |
| 50m Freestyle | 32.31 | BC Winter Divisionals - Island & Coastal Vancouver | 2026-02-20 |
| 800m Freestyle | 11:44.31 | Mies Schootman Invitational 2026 | 2026-01-16 |
Zhao, Gemma's top personal bests include 100m Backstroke (1:24.36), 100m Butterfly (1:32.23), 100m Freestyle (1:11.09), 200m Backstroke (3:04.34), 200m Butterfly (3:43.89).
Zhao, Gemma swims for Canadian Dolphins.
Zhao, Gemma has competed in 6 meets.