| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Butterfly | 1:15.40 | PSW Spring Invitational | 2025-04-12 |
| 100m Freestyle | 1:06.68 | SKSC Summerfest 2025 | 2025-07-26 |
| 100m IM | 1:15.03 | SKSC Summerfest 2025 | 2025-07-26 |
| 200m Freestyle | 2:23.86 | PSW Spring Invitational | 2025-04-12 |
| 200m IM | 2:50.92 | BC Winter Divisionals - Vancouver & Fraser | 2026-02-20 |
| 50m Backstroke | 34.19 | SKSC Summerfest 2025 | 2025-07-26 |
| 50m Breaststroke | 38.78 | SKSC Summerfest 2025 | 2025-07-26 |
| 50m Butterfly | 32.71 | SKSC Summerfest 2025 | 2025-07-26 |
| 50m Freestyle | 31.09 | SKSC Summerfest 2025 | 2025-07-26 |
| 800m Freestyle | 10:14.89 | PSW Spring Invitational | 2025-04-12 |
VanDiermen, Nadia's top personal bests include 100m Butterfly (1:15.40), 100m Freestyle (1:06.68), 100m IM (1:15.03), 200m Freestyle (2:23.86), 200m IM (2:50.92).
VanDiermen, Nadia swims for Surrey Knights Swim Club.
VanDiermen, Nadia has competed in 4 meets.