| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Breaststroke | 1:16.98 | Hollyburn Spring Meet | 2025-06-14 |
| 100m Freestyle | 59.67 | 2025 Summer Divisionals Island & Coastal Vancouver | 2025-06-27 |
| 50m Backstroke | 28.67 | 2025 Summer Divisionals Island & Coastal Vancouver | 2025-06-27 |
| 50m Butterfly | 28.84 | 2025 Summer Divisionals Island & Coastal Vancouver | 2025-06-27 |
| 50m Freestyle | 25.83 | 2025 Summer Divisionals Island & Coastal Vancouver | 2025-06-27 |
Chang, Eugene's top personal bests include 100m Breaststroke (1:16.98), 100m Freestyle (59.67), 50m Backstroke (28.67), 50m Butterfly (28.84), 50m Freestyle (25.83).
Chang, Eugene swims for Vancouver Pacific Swim Club.
Chang, Eugene has competed in 2 meets.