| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:10.46 | Border City Invitational 2025 | 2025-12-05 |
| 100m Breaststroke | 1:15.00 | Border City Invitational 2025 | 2025-12-05 |
| 100m Butterfly | 1:15.13 | BAC SC Fall Invitational | 2025-11-07 |
| 100m Freestyle | 1:01.22 | 2026 Central Region Div 1 SC Championships | 2026-02-06 |
| 100m IM | 1:09.72 | 2025 MMST Club Champs | 2025-05-31 |
| 200m Breaststroke | 2:42.64 | Border City Invitational 2025 | 2025-12-05 |
| 200m Freestyle | 2:17.19 | BAC SC Fall Invitational | 2025-11-07 |
| 200m IM | 2:29.76 | Border City Invitational 2025 | 2025-12-05 |
| 400m IM | 5:25.67 | Border City Invitational 2025 | 2025-12-05 |
| 50m Backstroke | 34.23 | 2025 MMST Club Champs | 2025-05-31 |
| 50m Breaststroke | 34.83 | 2025 MMST Club Champs | 2025-05-31 |
| 50m Butterfly | 32.30 | 2025 MMST Club Champs | 2025-05-31 |
| 50m Freestyle | 28.44 | Border City Invitational 2025 | 2025-12-05 |
Mezei, Gemma's top personal bests include 100m Backstroke (1:10.46), 100m Breaststroke (1:15.00), 100m Butterfly (1:15.13), 100m Freestyle (1:01.22), 100m IM (1:09.72).
Mezei, Gemma swims for Milton Marlin Swim Team.
Mezei, Gemma has competed in 8 meets.