| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:37.15 | Smile Enhancement Studio 2025 Pentathlon | 2025-10-17 |
| 100m Breaststroke | 1:51.32 | Nolans Pharmasave Fall Invitational | 2025-11-07 |
| 100m Butterfly | 1:43.82 | Smile Enhancement Studio 2025 Pentathlon | 2025-10-17 |
| 100m Freestyle | 1:25.13 | KCS 32nd MJB Law Classic SCM | 2025-12-12 |
| 100m IM | 1:39.15 | Smile Enhancement Studio 2025 Pentathlon | 2025-10-17 |
| 200m Backstroke | 3:26.66 | Smile Enhancement Studio 2025 Pentathlon | 2025-10-17 |
| 200m Breaststroke | 3:43.68 | KCS 32nd MJB Law Classic SCM | 2025-12-12 |
| 200m Freestyle | 3:05.31 | Nolans Pharmasave Fall Invitational | 2025-11-07 |
| 200m IM | 3:33.31 | KCS 32nd MJB Law Classic SCM | 2025-12-12 |
| 50m Backstroke | 42.92 | KCS 32nd MJB Law Classic SCM | 2025-12-12 |
| 50m Breaststroke | 52.43 | Smile Enhancement Studio 2025 Pentathlon | 2025-10-17 |
| 50m Butterfly | 42.68 | KCS 32nd MJB Law Classic SCM | 2025-12-12 |
| 50m Freestyle | 36.54 | KCS 32nd MJB Law Classic SCM | 2025-12-12 |
Nahachewsky, Olivia's top personal bests include 100m Backstroke (1:37.15), 100m Breaststroke (1:51.32), 100m Butterfly (1:43.82), 100m Freestyle (1:25.13), 100m IM (1:39.15).
Nahachewsky, Olivia swims for Kelowna AquaJets.
Nahachewsky, Olivia has competed in 5 meets.