| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Breaststroke | 1:20.07 | AA Spring Champs | 2025-06-06 |
| 100m Freestyle | 1:02.28 | Age Group Development #3 | 2025-11-22 |
| 100m IM | 1:12.44 | 2025 DAL Sprint Meet | 2025-10-19 |
| 1500m Freestyle | 4:47.44 | Age Group Development #3 | 2025-11-22 |
| 200m Breaststroke | 2:59.32 | Age Group Development #3 | 2025-11-22 |
| 200m IM | 2:46.84 | Age Group Development #3 | 2025-11-22 |
| 400m Freestyle | 5:10.59 | 2025 AGD Distance Central | 2025-11-01 |
| 50m Backstroke | 35.44 | 2025 DAL Sprint Meet | 2025-10-19 |
| 50m Breaststroke | 36.44 | 2025 DAL Sprint Meet | 2025-10-19 |
| 50m Butterfly | 32.65 | AA Spring Champs | 2025-06-06 |
| 50m Freestyle | 28.55 | 2025 DAL Sprint Meet | 2025-10-19 |
| 800m Freestyle | 10:42.20 | 2025 AGD Distance Central | 2025-11-01 |
Cui, Zhankun's top personal bests include 100m Breaststroke (1:20.07), 100m Freestyle (1:02.28), 100m IM (1:12.44), 1500m Freestyle (4:47.44), 200m Breaststroke (2:59.32).
Cui, Zhankun swims for Halifax Trojan Aquatic Club.
Cui, Zhankun has competed in 7 meets.