| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Breaststroke | 1:51.58 | Marianne Limpert Team Championship | 2026-02-05 |
| 100m Freestyle | 1:31.07 | Marianne Limpert Team Championship | 2026-02-05 |
| 100m Freestyle | 1:37.03 | Premier Festival | 2025-05-31 |
| 200m Breaststroke | 3:55.71 | Marianne Limpert Team Championship | 2026-02-05 |
| 200m Breaststroke | 4:14.14 | Premier # 2 – Region 1 / Première # 2 – Région 1 | 2025-12-13 |
| 200m Freestyle | 3:24.78 | Marianne Limpert Team Championship | 2026-02-05 |
| 400m Freestyle | 7:09.78 | Marianne Limpert Team Championship | 2026-02-05 |
| 400m Freestyle | 7:15.33 | Premier Festival | 2025-05-31 |
| 50m Breaststroke | 51.82 | Marianne Limpert Team Championship | 2026-02-05 |
| 50m Breaststroke | 54.16 | Premier # 2 – Region 1 / Première # 2 – Région 1 | 2025-12-13 |
| 50m Butterfly | 58.23 | Premier # 2 – Region 1 / Première # 2 – Région 1 | 2025-12-13 |
| 50m Freestyle | 42.94 | Premier Festival | 2025-05-31 |
Rata, Mathias's top personal bests include 100m Breaststroke (1:51.58), 100m Freestyle (1:31.07), 100m Freestyle (1:37.03), 200m Breaststroke (3:55.71), 200m Breaststroke (4:14.14).
Rata, Mathias swims for Natation Edmundston Swimming.
Rata, Mathias has competed in 3 meets.