| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:47.03 | 2025 Age Group International SC | 2025-11-27 |
| 100m Breaststroke | 2:20.12 | 2025 Murray Drudge Invitational | 2025-12-05 |
| 100m Butterfly | 1:57.34 | Hall of Fame | 2025-10-18 |
| 100m Freestyle | 1:35.15 | Pan Am Open 2026 | 2026-02-21 |
| 200m Backstroke | 3:46.29 | Pan Am Open 2026 | 2026-02-21 |
| 200m Freestyle | 3:20.64 | Pan Am Open 2026 | 2026-02-21 |
| 200m IM | 4:02.46 | Hall of Fame | 2025-10-18 |
| 400m Freestyle | 7:08.61 | 2025 Age Group International SC | 2025-11-27 |
| 400m IM | 8:58.45 | 2025 Murray Drudge Invitational | 2025-12-05 |
| 50m Backstroke | 53.25 | 2025 Murray Drudge Invitational | 2025-12-05 |
| 50m Breaststroke | 1:08.54 | 2025 Age Group International SC | 2025-11-27 |
| 50m Butterfly | 49.27 | SCAR Cindy Nicholas Memorial Meet | 2025-11-01 |
| 50m Freestyle | 39.84 | Pan Am Open 2026 | 2026-02-21 |
Melo, Gabriella's top personal bests include 100m Backstroke (1:47.03), 100m Breaststroke (2:20.12), 100m Butterfly (1:57.34), 100m Freestyle (1:35.15), 200m Backstroke (3:46.29).
Melo, Gabriella swims for Etobicoke Swim Club.
Melo, Gabriella has competed in 9 meets.