| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:20.88 | Winterfest 2026 | 2026-01-17 |
| 100m Backstroke | 1:19.11 | Red Deer Catalina Valentine Meet | 2026-02-07 |
| 100m Breaststroke | 1:31.28 | 4th Annual Comet Cup | 2025-11-14 |
| 100m Butterfly | 1:23.84 | Winterfest 2026 | 2026-01-17 |
| 100m Butterfly | 1:34.59 | Summer Festival | 2025-06-13 |
| 100m Freestyle | 1:08.23 | Red Deer Catalina Valentine Meet | 2026-02-07 |
| 100m IM | 1:21.36 | 2025 Catalina Fall House Meet | 2025-10-19 |
| 200m Backstroke | 2:50.06 | Winterfest 2026 | 2026-01-17 |
| 200m Backstroke | 2:42.94 | Red Deer Catalina Valentine Meet | 2026-02-07 |
| 200m Breaststroke | 3:18.67 | 4th Annual Comet Cup | 2025-11-14 |
| 200m Butterfly | 2:57.34 | Winter Provincial Trials | 2026-03-06 |
| 200m Freestyle | 2:32.77 | Winterfest 2026 | 2026-01-17 |
| 200m Freestyle | 2:21.95 | Winter Provincial Trials | 2026-03-06 |
| 200m IM | 2:52.58 | Edmonton Open 2026 | 2026-01-30 |
| 200m IM | 2:44.68 | OSC J.P. Fiset Invitational | 2025-12-11 |
| 400m Freestyle | 5:12.39 | Winterfest 2026 | 2026-01-17 |
| 400m Freestyle | 4:57.24 | Winter Provincial Trials | 2026-03-06 |
| 400m IM | 6:01.29 | Edmonton Open 2026 | 2026-01-30 |
| 400m IM | 5:43.42 | Winter Provincial Trials | 2026-03-06 |
| 50m Backstroke | 34.83 | Winter Provincial Trials | 2026-03-06 |
| 50m Breaststroke | 44.14 | Edmonton Open 2026 | 2026-01-30 |
| 50m Butterfly | 37.06 | Winterfest 2026 | 2026-01-17 |
| 50m Butterfly | 35.15 | OSC J.P. Fiset Invitational | 2025-12-11 |
| 50m Freestyle | 32.14 | Winterfest 2026 | 2026-01-17 |
| 50m Freestyle | 30.37 | Winter Provincial Trials | 2026-03-06 |
| 800m Freestyle | 10:05.23 | Winter Provincial Trials | 2026-03-06 |
Mellon, Madelynn's top personal bests include 100m Backstroke (1:20.88), 100m Backstroke (1:19.11), 100m Breaststroke (1:31.28), 100m Butterfly (1:23.84), 100m Butterfly (1:34.59).
Mellon, Madelynn swims for Red Deer Catalina.
Mellon, Madelynn has competed in 8 meets.