| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:07.41 | 2026 BC Winter Provincial Championships | 2026-03-05 |
| 100m Breaststroke | 1:18.46 | BC Winter Divisionals - Vancouver & Fraser | 2026-02-20 |
| 100m Butterfly | 1:19.25 | VPSC Fall Invitational 2025 | 2025-10-18 |
| 100m Freestyle | 1:02.52 | UBC University Cup Pacific 2025 | 2025-11-08 |
| 100m IM | 1:12.94 | VPSC Fall Invitational 2025 | 2025-10-18 |
| 200m Backstroke | 2:32.02 | 2025 Summer Divisionals Island & Coastal Vancouver | 2025-06-27 |
| 200m Breaststroke | 2:53.56 | BC Winter Divisionals - Vancouver & Fraser | 2026-02-20 |
| 200m IM | 2:39.52 | 2025 Summer Divisionals Island & Coastal Vancouver | 2025-06-27 |
| 50m Backstroke | 31.98 | 2026 BC Winter Provincial Championships | 2026-03-05 |
| 50m Breaststroke | 35.47 | SKSC Summerfest 2025 | 2025-07-26 |
| 50m Butterfly | 33.23 | VPSC Fall Invitational 2025 | 2025-10-18 |
| 50m Freestyle | 28.97 | BC Winter Divisionals - Vancouver & Fraser | 2026-02-20 |
Chang, Constance's top personal bests include 100m Backstroke (1:07.41), 100m Breaststroke (1:18.46), 100m Butterfly (1:19.25), 100m Freestyle (1:02.52), 100m IM (1:12.94).
Chang, Constance swims for Vancouver Pacific Swim Club.
Chang, Constance has competed in 10 meets.