| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:21.66 | Dean Boles Invitational Meet | 2026-01-10 |
| 100m Breaststroke | 1:27.19 | BAD Outdoor LC Invitational | 2025-06-20 |
| 100m Breaststroke | 1:23.14 | BAC Team Showdown 2025 | 2025-12-12 |
| 100m Butterfly | 1:20.97 | BAC Team Showdown 2025 | 2025-12-12 |
| 100m Freestyle | 1:08.41 | MAC Rising Star #2 | 2025-05-30 |
| 100m Freestyle | 1:05.06 | BAC Team Showdown 2025 | 2025-12-12 |
| 100m IM | 1:19.55 | ROW Fall First Try | 2025-10-18 |
| 200m Backstroke | 2:51.69 | BAC SC Fall Invitational | 2025-11-07 |
| 200m Breaststroke | 3:00.99 | BAC SC Fall Invitational | 2025-11-07 |
| 200m Butterfly | 3:00.70 | Dean Boles Invitational Meet | 2026-01-10 |
| 200m Freestyle | 2:32.44 | MAC Rising Star #2 | 2025-05-30 |
| 200m Freestyle | 2:26.69 | BAC Team Showdown 2025 | 2025-12-12 |
| 200m IM | 2:55.92 | MAC Rising Star #2 | 2025-05-30 |
| 200m IM | 2:46.19 | BAC Team Showdown 2025 | 2025-12-12 |
| 400m Freestyle | 5:30.02 | BAC Team Showdown 2025 | 2025-12-12 |
| 50m Backstroke | 36.85 | MAC Rising Star #2 | 2025-05-30 |
| 50m Backstroke | 35.24 | ROW Fall First Try | 2025-10-18 |
| 50m Breaststroke | 40.31 | MAC Rising Star #2 | 2025-05-30 |
| 50m Breaststroke | 38.01 | ROW Fall First Try | 2025-10-18 |
| 50m Butterfly | 35.84 | MAC Rising Star #2 | 2025-05-30 |
| 50m Butterfly | 33.96 | Dean Boles Invitational Meet | 2026-01-10 |
| 50m Freestyle | 30.21 | MAC Rising Star #2 | 2025-05-30 |
| 50m Freestyle | 29.09 | BAC SC Fall Invitational | 2025-11-07 |
| 800m Freestyle | 11:21.31 | David Lawson Invitational 2026 | 2026-01-23 |
Offak, Oliver's top personal bests include 100m Backstroke (1:21.66), 100m Breaststroke (1:27.19), 100m Breaststroke (1:23.14), 100m Butterfly (1:20.97), 100m Freestyle (1:08.41).
Offak, Oliver swims for Region of Waterloo Swim Club.
Offak, Oliver has competed in 7 meets.