| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:35.96 | 2025 Huronia Region LC Team Challenge | 2025-06-05 |
| 100m Breaststroke | 1:25.67 | 2026 Ontario Age Groups - MPAC | 2026-03-05 |
| 100m Breaststroke | 1:26.48 | 2026 Huronia SC Regional Championships | 2026-02-06 |
| 100m Butterfly | 1:18.54 | MAC Winter Invitational | 2026-01-22 |
| 100m Butterfly | 1:20.46 | 2026 Huronia SC Regional Championships | 2026-02-06 |
| 100m Freestyle | 1:18.77 | 2025 Huronia Region LC Team Challenge | 2025-06-05 |
| 100m Freestyle | 1:09.39 | 2026 Huronia SC Regional Championships | 2026-02-06 |
| 200m Breaststroke | 3:05.51 | 2026 Ontario Age Groups - MPAC | 2026-03-05 |
| 200m Breaststroke | 3:02.46 | 2026 Huronia SC Regional Championships | 2026-02-06 |
| 200m Butterfly | 2:55.31 | 2026 Huronia SC Regional Championships | 2026-02-06 |
| 200m Freestyle | 2:45.55 | 2025 Huronia Region LC Team Challenge | 2025-06-05 |
| 200m Freestyle | 2:30.39 | 2026 Huronia SC Regional Championships | 2026-02-06 |
| 200m IM | 2:52.11 | MAC Winter Invitational | 2026-01-22 |
| 200m IM | 2:44.33 | 2026 Huronia SC Regional Championships | 2026-02-06 |
| 400m Freestyle | 5:19.34 | 2026 Ontario Age Groups - MPAC | 2026-03-05 |
| 400m Freestyle | 5:36.29 | 2025 Barrie Aquafest | 2025-10-31 |
| 50m Backstroke | 41.20 | 2025 NYAC Cup | 2025-11-14 |
| 50m Breaststroke | 38.70 | 2026 Ontario Age Groups - MPAC | 2026-03-05 |
| 50m Breaststroke | 39.51 | 2026 Huronia SC Regional Championships | 2026-02-06 |
| 50m Butterfly | 39.08 | 2025 Barrie Aquafest | 2025-10-31 |
| 50m Freestyle | 33.38 | 2025 Barrie Aquafest | 2025-10-31 |
| 800m Freestyle | 10:51.42 | MAC Winter Invitational | 2026-01-22 |
| 800m Freestyle | 11:14.47 | 2025 BTSC Trojan Cup | 2025-12-12 |
Mackie, Emma's top personal bests include 100m Backstroke (1:35.96), 100m Breaststroke (1:25.67), 100m Breaststroke (1:26.48), 100m Butterfly (1:18.54), 100m Butterfly (1:20.46).
Mackie, Emma swims for Barrie Trojan Swim Club.
Mackie, Emma has competed in 9 meets.