| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:34.73 | SilverRays Invitational | 2025-05-31 |
| 100m Backstroke | 1:22.32 | Neil Lepps 2026 | 2026-03-14 |
| 100m Breaststroke | 1:35.61 | Neil Lepps 2026 | 2026-03-14 |
| 100m Butterfly | 1:45.17 | SilverRays Invitational | 2025-05-31 |
| 100m Butterfly | 1:27.82 | Winter Festival | 2026-01-23 |
| 100m Freestyle | 1:14.22 | Winter Festival | 2026-01-23 |
| 100m IM | 1:25.65 | Winter Festival | 2026-01-23 |
| 200m Backstroke | 3:01.70 | Winter Festival | 2026-01-23 |
| 200m Breaststroke | 4:01.38 | SilverRays Invitational | 2025-05-31 |
| 200m Breaststroke | 3:39.05 | Blue Bears Invitational | 2026-01-16 |
| 200m Freestyle | 3:05.89 | SilverRays Invitational | 2025-05-31 |
| 200m Freestyle | 2:48.81 | Blue Bears Invitational | 2026-01-16 |
| 200m IM | 2:57.08 | Neil Lepps 2026 | 2026-03-14 |
| 400m Freestyle | 5:51.68 | Blue Bears Invitational | 2026-01-16 |
| 50m Backstroke | 44.00 | SilverRays Invitational | 2025-05-31 |
| 50m Backstroke | 39.55 | Winter Festival | 2026-01-23 |
| 50m Breaststroke | 52.74 | SilverRays Invitational | 2025-05-31 |
| 50m Breaststroke | 44.34 | Neil Lepps 2026 | 2026-03-14 |
| 50m Butterfly | 37.82 | Neil Lepps 2026 | 2026-03-14 |
| 50m Freestyle | 36.99 | SilverRays Invitational | 2025-05-31 |
| 50m Freestyle | 32.96 | Neil Lepps 2026 | 2026-03-14 |
Gao, Charles's top personal bests include 100m Backstroke (1:34.73), 100m Backstroke (1:22.32), 100m Breaststroke (1:35.61), 100m Butterfly (1:45.17), 100m Butterfly (1:27.82).
Gao, Charles swims for Edmonton Keyano Swim Club.
Gao, Charles has competed in 8 meets.