| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:08.84 | UCSC Fall Start Up | 2025-10-18 |
| 100m Breaststroke | 1:13.46 | Western Transmountain Festival III | 2026-02-20 |
| 100m Breaststroke | 1:10.81 | UCSC Grand Prix | 2026-01-30 |
| 100m Butterfly | 1:04.55 | UCSC Fall Start Up | 2025-10-18 |
| 100m Freestyle | 57.58 | Summer Provincial Championships LC | 2025-07-24 |
| 100m Freestyle | 56.66 | Dino Invitational 2025 | 2025-10-31 |
| 100m IM | 1:04.87 | UCSC TC1-Special | 2025-10-17 |
| 200m Backstroke | 2:35.08 | UCSC Grand Prix | 2026-01-30 |
| 200m Breaststroke | 2:37.16 | Western Transmountain Festival III | 2026-02-20 |
| 200m Breaststroke | 2:29.85 | VPSC Winter Invitational 2025 | 2025-12-05 |
| 200m Freestyle | 2:06.26 | Summer Provincial Championships LC | 2025-07-24 |
| 200m Freestyle | 2:01.52 | VPSC Winter Invitational 2025 | 2025-12-05 |
| 200m IM | 2:16.18 | VPSC Winter Invitational 2025 | 2025-12-05 |
| 400m Freestyle | 4:28.63 | Summer Provincial Championships LC | 2025-07-24 |
| 400m Freestyle | 4:14.77 | VPSC Winter Invitational 2025 | 2025-12-05 |
| 400m IM | 5:00.08 | UCSC Grand Prix | 2026-01-30 |
| 50m Breaststroke | 34.02 | Western Transmountain Festival III | 2026-02-20 |
| 50m Butterfly | 28.24 | UCSC TC1-Special | 2025-10-17 |
| 50m Freestyle | 26.36 | Summer Provincial Championships LC | 2025-07-24 |
| 50m Freestyle | 25.66 | UCSC TC1-Special | 2025-10-17 |
| 800m Freestyle | 9:21.62 | Summer Provincial Championships LC | 2025-07-24 |
| 800m Freestyle | 9:06.19 | VPSC Winter Invitational 2025 | 2025-12-05 |
Kim, Sion's top personal bests include 100m Backstroke (1:08.84), 100m Breaststroke (1:13.46), 100m Breaststroke (1:10.81), 100m Butterfly (1:04.55), 100m Freestyle (57.58).
Kim, Sion swims for Calgary Swimming.
Kim, Sion has competed in 8 meets.