| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Breaststroke | 1:14.49 | Toronto Grand Prix | 2026-01-24 |
| 100m Breaststroke | 1:09.62 | 2026 U SPORTS Swimming Championships | 2026-03-12 |
| 100m IM | 1:02.60 | Toronto Varsity Blues vs McGill | 2025-11-16 |
| 50m Backstroke | 30.55 | Toronto Grand Prix | 2026-01-24 |
| 50m Backstroke | 28.42 | 2026 U SPORTS Swimming Championships | 2026-03-12 |
| 50m Breaststroke | 32.88 | Toronto Grand Prix | 2026-01-24 |
| 50m Breaststroke | 31.41 | Toronto Varsity Blues vs McGill | 2025-11-16 |
| 50m Butterfly | 27.42 | 2026 U SPORTS Swimming Championships | 2026-03-12 |
| 50m Freestyle | 26.58 | UT QUAD Meet (vs Calgary, Western, Quebec) | 2026-01-23 |
Mastromatteo, Emilia's top personal bests include 100m Breaststroke (1:14.49), 100m Breaststroke (1:09.62), 100m IM (1:02.60), 50m Backstroke (30.55), 50m Backstroke (28.42).
Mastromatteo, Emilia swims for McGill University.
Mastromatteo, Emilia has competed in 5 meets.