| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:05.67 | Unknown Meet 2024-05-15 | 2024-05-15 |
| 100m Backstroke | 59.47 | 2026 U SPORTS Swimming Championships | 2026-03-12 |
| 100m Breaststroke | 1:19.49 | Unknown Meet 2023-05-12 | 2023-05-12 |
| 100m Butterfly | 1:06.49 | Import - Toronto (ON) Feb-Mar 2024 | 2024-02-29 |
| 100m Butterfly | 1:01.51 | 2026 U SPORTS Swimming Championships | 2026-03-12 |
| 100m Freestyle | 1:06.50 | Unknown Meet 2019-08-03 | 2019-08-03 |
| 100m Medley | 1:07.73 | Import - Etobicoke (ON) Nov 10 2023 | 2023-11-10 |
| 200m Backstroke | 2:20.91 | Unknown Meet 2023-03-18 | 2023-03-18 |
| 200m Backstroke | 2:12.11 | Import - St. Catharines (ON) Nov 2024 | 2024-11-23 |
| 200m Breaststroke | 3:34.07 | Unknown Meet 2017-01-07 | 2017-01-07 |
| 200m Butterfly | 2:48.29 | Unknown Meet 2018-07-27 | 2018-07-27 |
| 200m Butterfly | 2:21.14 | Unknown Meet 2024-11-02 | 2024-11-02 |
| 200m IM | 2:27.96 | VPSC Winter Invitational 2025 | 2025-12-05 |
| 200m Medley | 2:29.54 | Unknown Meet 2023-05-14 | 2023-05-14 |
| 200m Medley | 2:24.65 | Import - Etobicoke (ON) Nov 10 2023 | 2023-11-10 |
| 400m Freestyle | 4:44.61 | UBC Winter Warm-Up 2026 | 2026-01-17 |
| 400m Medley | 5:47.19 | Unknown Meet 2018-07-26 | 2018-07-26 |
| 50m Backstroke | 30.53 | Import - Windsor (ON) Mar 2023 | 2023-03-17 |
| 50m Backstroke | 27.47 | 2026 U SPORTS Swimming Championships | 2026-03-12 |
| 50m Breaststroke | 36.98 | Unknown Meet 2023-05-13 | 2023-05-13 |
| 50m Butterfly | 29.82 | Unknown Meet 2023-05-14 | 2023-05-14 |
| 50m Butterfly | 28.57 | 2026 U SPORTS Swimming Championships | 2026-03-12 |
| 50m Freestyle | 31.22 | Unknown Meet 2019-08-02 | 2019-08-02 |
| 50m Freestyle | 28.17 | Unknown Meet 2022-11-05 | 2022-11-05 |
Piper Mitchell's top personal bests include 100m Backstroke (1:05.67), 100m Backstroke (59.47), 100m Breaststroke (1:19.49), 100m Butterfly (1:06.49), 100m Butterfly (1:01.51).
Piper Mitchell swims for University of British Columbia.
Piper Mitchell has competed in 84 meets.