| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Freestyle | 1:15.83 | 2026 Joanne Malar Invitational | 2026-01-16 |
| 100m IM | 1:24.66 | Pan Am Open 2026 | 2026-02-21 |
| 200m IM | 3:05.83 | 2026 Joanne Malar Invitational | 2026-01-16 |
| 50m Backstroke | 42.44 | Pan Am Open 2026 | 2026-02-21 |
| 50m Breaststroke | 44.69 | Pan Am Open 2026 | 2026-02-21 |
| 50m Butterfly | 40.87 | 2025 Alex Baumann Invitational | 2025-11-21 |
Bian, Kai's top personal bests include 100m Freestyle (1:15.83), 100m IM (1:24.66), 200m IM (3:05.83), 50m Backstroke (42.44), 50m Breaststroke (44.69).
Bian, Kai swims for New Stars Swimming Club.
Bian, Kai has competed in 4 meets.