| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:25.37 | Sandy Ferris Age Group Food Bank Challenge 2025 | 2025-12-19 |
| 100m Breaststroke | 1:32.07 | Western Transmountain Festival II | 2026-02-17 |
| 100m Butterfly | 1:30.09 | Pugsley's Plunge 2026 | 2026-01-16 |
| 100m Freestyle | 1:11.05 | Western Transmountain Festival II | 2026-02-17 |
| 100m IM | 1:22.61 | Western Transmountain Festival II | 2026-02-17 |
| 200m Breaststroke | 3:22.36 | Nose Creek Invitational 2026 | 2026-03-14 |
| 200m Freestyle | 2:48.40 | Sandy Ferris Age Group Food Bank Challenge 2025 | 2025-12-19 |
| 200m IM | 2:59.17 | Nose Creek Invitational 2026 | 2026-03-14 |
| 400m IM | 6:42.03 | Pugsley's Plunge 2026 | 2026-01-16 |
| 50m Backstroke | 40.01 | Sandy Ferris Age Group Food Bank Challenge 2025 | 2025-12-19 |
| 50m Breaststroke | 42.75 | Pugsley's Plunge 2026 | 2026-01-16 |
| 50m Butterfly | 36.50 | Nose Creek Invitational 2026 | 2026-03-14 |
| 50m Freestyle | 32.28 | Sandy Ferris Age Group Food Bank Challenge 2025 | 2025-12-19 |
Ko, Jayden's top personal bests include 100m Backstroke (1:25.37), 100m Breaststroke (1:32.07), 100m Butterfly (1:30.09), 100m Freestyle (1:11.05), 100m IM (1:22.61).
Ko, Jayden swims for Cascade Swim Club.
Ko, Jayden has competed in 7 meets.