| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:53.83 | Chena Invitational | 2026-01-24 |
| 100m Freestyle | 1:47.67 | Chena Invitational | 2026-01-24 |
| 50m Backstroke | 51.26 | Chena Invitational | 2026-01-24 |
| 50m Breaststroke | 53.95 | Chena Invitational | 2026-01-24 |
| 50m Butterfly | 51.45 | Chena Invitational | 2026-01-24 |
Koretchuk, Thea's top personal bests include 100m Backstroke (1:53.83), 100m Freestyle (1:47.67), 50m Backstroke (51.26), 50m Breaststroke (53.95), 50m Butterfly (51.45).
Koretchuk, Thea swims for Chena Swim Club.
Koretchuk, Thea has competed in 1 meets.