| Event | Time | Meet | Date |
|---|---|---|---|
| 25m Backstroke | 29.09 | Craven SPORT Services Racing Series #2 | 2025-11-15 |
| 25m Freestyle | 31.91 | Craven SPORT Services Racing Series #1 | 2025-09-27 |
| 50m Freestyle | 1:06.66 | Craven SPORT Services Racing Series #2 | 2025-11-15 |
Gao, Junchen's top personal bests include 25m Backstroke (29.09), 25m Freestyle (31.91), 50m Freestyle (1:06.66).
Gao, Junchen swims for Saskatoon Lasers Swim Club.
Gao, Junchen has competed in 4 meets.