| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 58.57 | VPSC Winter Invitational 2025 | 2025-12-05 |
| 100m Breaststroke | 1:02.09 | 2026 BC Winter Provincial Championships | 2026-03-05 |
| 100m Butterfly | 57.86 | VPSC Winter Invitational 2025 | 2025-12-05 |
| 100m Freestyle | 52.24 | VPSC Fall Invitational 2025 | 2025-10-18 |
| 100m IM | 56.94 | VPSC Fall Invitational 2025 | 2025-10-18 |
| 200m Breaststroke | 2:16.81 | 2026 BC Winter Provincial Championships | 2026-03-05 |
| 200m IM | 2:08.17 | UBC University Cup Pacific 2025 | 2025-11-08 |
| 50m Backstroke | 28.09 | VPSC Winter Invitational 2025 | 2025-12-05 |
| 50m Breaststroke | 28.18 | VPSC Winter Invitational 2025 | 2025-12-05 |
| 50m Butterfly | 26.00 | VPSC Fall Invitational 2025 | 2025-10-18 |
| 50m Freestyle | 23.20 | VPSC Winter Invitational 2025 | 2025-12-05 |
Su, Zi Dong's top personal bests include 100m Backstroke (58.57), 100m Breaststroke (1:02.09), 100m Butterfly (57.86), 100m Freestyle (52.24), 100m IM (56.94).
Su, Zi Dong swims for Richmond Rapids.
Su, Zi Dong has competed in 6 meets.