| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:24.21 | RHAC Winter Invitational 2026 | 2026-01-16 |
| 100m Breaststroke | 1:25.04 | 2026 Mallards Winter LC Invitational | 2026-01-30 |
| 100m Breaststroke | 1:20.79 | RHAC Fall Classic 2025 | 2025-10-24 |
| 100m Butterfly | 1:26.33 | 2026 Mallards Winter LC Invitational | 2026-01-30 |
| 100m Freestyle | 1:13.35 | 2026 Mallards Winter LC Invitational | 2026-01-30 |
| 100m IM | 1:20.06 | RHAC Fall Classic 2025 | 2025-10-24 |
| 200m Backstroke | 3:03.02 | 2025 RHAC Summer League | 2025-07-18 |
| 200m Breaststroke | 2:55.20 | 2026 Ontario Age Groups - MPAC | 2026-03-05 |
| 200m Breaststroke | 2:50.42 | 2026 Central Region Div 1 SC Championships | 2026-02-06 |
| 200m Freestyle | 2:38.02 | 2026 Mallards Winter LC Invitational | 2026-01-30 |
| 200m Freestyle | 2:42.85 | 2025 RHAC Summer League | 2025-07-18 |
| 200m IM | 2:50.91 | RHAC Fall Classic 2025 | 2025-10-24 |
| 400m Freestyle | 5:41.79 | RHAC Winter Invitational 2026 | 2026-01-16 |
| 400m Freestyle | 5:28.75 | 2025 Alex Baumann Invitational | 2025-11-21 |
| 400m IM | 6:07.75 | MAC Jingle Bell | 2025-12-12 |
| 50m Backstroke | 38.63 | 2026 Mallards Winter LC Invitational | 2026-01-30 |
| 50m Backstroke | 39.13 | RHAC Fall Classic 2025 | 2025-10-24 |
| 50m Breaststroke | 37.45 | 2026 Ontario Age Groups - MPAC | 2026-03-05 |
| 50m Breaststroke | 37.35 | RHAC Fall Classic 2025 | 2025-10-24 |
| 50m Butterfly | 38.47 | 2026 Mallards Winter LC Invitational | 2026-01-30 |
| 50m Butterfly | 38.26 | MAC Jingle Bell | 2025-12-12 |
| 50m Freestyle | 34.49 | 2026 Mallards Winter LC Invitational | 2026-01-30 |
| 50m Freestyle | 33.10 | 2025 Alex Baumann Invitational | 2025-11-21 |
Mok, Jeslyn's top personal bests include 100m Backstroke (1:24.21), 100m Breaststroke (1:25.04), 100m Breaststroke (1:20.79), 100m Butterfly (1:26.33), 100m Freestyle (1:13.35).
Mok, Jeslyn swims for Swim Apex Aquatic Club.
Mok, Jeslyn has competed in 9 meets.