| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:32.81 | 2026 AAA #1 LC Invitational | 2026-01-30 |
| 100m Breaststroke | 1:29.31 | 2025 Candy Cane Invitational | 2025-12-12 |
| 100m Butterfly | 1:20.12 | AAA/AA #5 LCM Invitational Swim Meet | 2026-04-25 |
| 100m Butterfly | 1:12.88 | 2026 AA & AAA Winter Champs | 2026-03-05 |
| 100m Freestyle | 1:09.13 | 2026 AAA #2 LC Invitational | 2026-02-21 |
| 100m Freestyle | 1:06.94 | 2026 AA & AAA Winter Champs | 2026-03-05 |
| 200m Backstroke | 3:19.56 | 2026 AAA #2 LC Invitational | 2026-02-21 |
| 200m Breaststroke | 3:18.58 | 2026 AAA #2 LC Invitational | 2026-02-21 |
| 200m Breaststroke | 3:09.16 | 2025 Candy Cane Invitational | 2025-12-12 |
| 200m Butterfly | 3:24.95 | AAA/AA #5 LCM Invitational Swim Meet | 2026-04-25 |
| 200m Freestyle | 2:29.99 | 2026 AA & AAA Winter Champs | 2026-03-05 |
| 200m IM | 2:56.38 | AAA/AA #5 LCM Invitational Swim Meet | 2026-04-25 |
| 200m IM | 2:56.95 | 2025 Candy Cane Invitational | 2025-12-12 |
| 400m Freestyle | 5:47.33 | 2026 AAA #1 LC Invitational | 2026-01-30 |
| 400m Freestyle | 5:53.28 | AGD Distance Meet North | 2025-11-09 |
| 400m IM | 6:28.39 | AAA/AA #5 LCM Invitational Swim Meet | 2026-04-25 |
| 400m IM | 6:41.37 | AGD Distance Meet North | 2025-11-09 |
| 50m Backstroke | 42.50 | 2026 AAA #1 LC Invitational | 2026-01-30 |
| 50m Backstroke | 42.88 | AA Spring Champs | 2025-06-06 |
| 50m Breaststroke | 41.01 | AAA/AA #5 LCM Invitational Swim Meet | 2026-04-25 |
| 50m Breaststroke | 40.81 | 2025 Candy Cane Invitational | 2025-12-12 |
| 50m Butterfly | 36.46 | AA Spring Champs | 2025-06-06 |
| 50m Freestyle | 28.87 | 2026 AA & AAA Winter Champs | 2026-03-05 |
| 800m Freestyle | 11:58.74 | AAA/AA #5 LCM Invitational Swim Meet | 2026-04-25 |
Choi, Jaehyeok's top personal bests include 100m Backstroke (1:32.81), 100m Breaststroke (1:29.31), 100m Butterfly (1:20.12), 100m Butterfly (1:12.88), 100m Freestyle (1:09.13).
Choi, Jaehyeok swims for Sackville Waves Aquatic Team.
Choi, Jaehyeok has competed in 8 meets.