| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Freestyle | 1:54.79 | Lloydminster Riptides RUSH Invitational | 2026-02-28 |
| 50m Freestyle | 50.78 | Lloydminster Riptides RUSH Invitational | 2026-02-28 |
Koval, Oleh's top personal bests include 100m Freestyle (1:54.79), 50m Freestyle (50.78).
Koval, Oleh swims for Vegreville Lasers Swim Club.
Koval, Oleh has competed in 1 meets.