| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:18.32 | UCSC Grand Prix | 2026-01-30 |
| 100m Butterfly | 1:21.38 | Winter Festival | 2026-01-23 |
| 100m Freestyle | 1:11.97 | Winter Festival | 2026-01-23 |
| 100m IM | 1:28.84 | UCSC TC1-Special | 2025-10-17 |
| 200m Backstroke | 2:53.04 | Winter Festival | 2026-01-23 |
| 200m Freestyle | 2:41.87 | Winter Festival | 2026-01-23 |
| 200m IM | 2:58.26 | Winter Festival | 2026-01-23 |
| 50m Backstroke | 36.47 | Winter Festival | 2026-01-23 |
| 50m Butterfly | 34.65 | Winter Festival | 2026-01-23 |
| 50m Freestyle | 32.34 | Winter Festival | 2026-01-23 |
Mattar, Mustafa's top personal bests include 100m Backstroke (1:18.32), 100m Butterfly (1:21.38), 100m Freestyle (1:11.97), 100m IM (1:28.84), 200m Backstroke (2:53.04).
Mattar, Mustafa swims for Calgary Swimming.
Mattar, Mustafa has competed in 6 meets.