| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:00.65 | MAC Winter Invitational | 2026-01-22 |
| 100m Backstroke | 59.19 | LAC - Nothers Fall Invitational | 2025-11-21 |
| 100m Breaststroke | 1:14.35 | MAC Winter Invitational | 2026-01-22 |
| 100m Breaststroke | 1:11.35 | RHAC Fall Classic 2025 | 2025-10-24 |
| 100m Butterfly | 58.40 | 2026 Central Region Div 1 SC Championships | 2026-02-06 |
| 100m Freestyle | 55.09 | MAC Winter Invitational | 2026-01-22 |
| 100m Freestyle | 55.20 | RHAC Fall Classic 2025 | 2025-10-24 |
| 100m IM | 1:00.18 | Pan Am Open 2026 | 2026-02-21 |
| 200m Backstroke | 2:13.06 | MAC Winter Invitational | 2026-01-22 |
| 200m Backstroke | 2:06.23 | LAC - Nothers Fall Invitational | 2025-11-21 |
| 200m Breaststroke | 2:27.83 | 2026 Central Region Div 1 SC Championships | 2026-02-06 |
| 200m Butterfly | 2:17.57 | Pan Am Open 2026 | 2026-02-21 |
| 200m Freestyle | 2:02.10 | MAC Winter Invitational | 2026-01-22 |
| 200m Freestyle | 1:59.81 | LAC - Nothers Fall Invitational | 2025-11-21 |
| 200m IM | 2:13.62 | MAC Winter Invitational | 2026-01-22 |
| 200m IM | 2:12.07 | RHAC Fall Classic 2025 | 2025-10-24 |
| 400m Freestyle | 4:11.31 | 2026 Central Region Div 1 SC Championships | 2026-02-06 |
| 400m IM | 4:44.98 | Pan Am Open 2026 | 2026-02-21 |
| 50m Backstroke | 28.57 | MAC Winter Invitational | 2026-01-22 |
| 50m Backstroke | 27.94 | RHAC Fall Classic 2025 | 2025-10-24 |
| 50m Breaststroke | 30.33 | 2026 Central Region Div 1 SC Championships | 2026-02-06 |
| 50m Butterfly | 26.61 | 2026 Central Region Div 1 SC Championships | 2026-02-06 |
Posternak, Maty's top personal bests include 100m Backstroke (1:00.65), 100m Backstroke (59.19), 100m Breaststroke (1:14.35), 100m Breaststroke (1:11.35), 100m Butterfly (58.40).
Posternak, Maty swims for CREST Swimming.
Posternak, Maty has competed in 5 meets.