| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:26.36 | 2026 Central Region Div 2 SC Championships | 2026-02-20 |
| 100m Breaststroke | 1:49.94 | 2025 MSSAC Harvest Invitational | 2025-11-01 |
| 100m Freestyle | 1:14.95 | 2026 Central Region Div 2 SC Championships | 2026-02-20 |
| 200m Backstroke | 3:12.90 | GRAC 2025 Black-Blue-Green Meet #1 | 2025-12-20 |
| 200m Freestyle | 2:59.97 | 2025 Alan Swanston Classic | 2025-12-05 |
| 200m IM | 3:03.60 | GRAC 2026 Green-Black-Blue Meet #2 | 2026-03-14 |
| 400m Freestyle | 5:47.82 | GRAC 2026 Green-Black-Blue Meet #2 | 2026-03-14 |
| 50m Breaststroke | 52.26 | MAC Fall Fest Invitational | 2025-10-18 |
| 50m Freestyle | 32.91 | GRAC 2026 Green-Black-Blue Meet #2 | 2026-03-14 |
| 800m Freestyle | 12:07.73 | GRAC 2026 Green-Black-Blue Meet #2 | 2026-03-14 |
Unger Alexander, Mathias's top personal bests include 100m Backstroke (1:26.36), 100m Breaststroke (1:49.94), 100m Freestyle (1:14.95), 200m Backstroke (3:12.90), 200m Freestyle (2:59.97).
Unger Alexander, Mathias swims for Georgina Rapids Aquatic Club.
Unger Alexander, Mathias has competed in 7 meets.