| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:14.53 | 2025 Age Group International LC | 2025-06-05 |
| 100m Backstroke | 1:02.20 | 2026 Central Region Div 1 SC Championships | 2026-02-06 |
| 100m Butterfly | 1:00.05 | Scar Pan Am Winter Classic | 2026-01-16 |
| 100m Butterfly | 59.52 | 2025 NYAC Cup | 2025-11-14 |
| 100m Freestyle | 59.09 | Scar Pan Am Winter Classic | 2026-01-16 |
| 100m Freestyle | 55.75 | 2026 Central Region Div 1 SC Championships | 2026-02-06 |
| 200m Backstroke | 2:22.76 | 2026 Central Region Div 1 SC Championships | 2026-02-06 |
| 200m Breaststroke | 2:59.60 | 2025 OAK Brad Townsend Fall Classic | 2025-10-17 |
| 200m Butterfly | 2:24.15 | 2025 Age Group International LC | 2025-06-05 |
| 200m Butterfly | 2:18.07 | 2025 NYAC Cup | 2025-11-14 |
| 200m Freestyle | 2:16.55 | MAC Summer Invitational | 2025-07-24 |
| 200m Freestyle | 2:00.93 | 2026 Central Region Div 1 SC Championships | 2026-02-06 |
| 200m IM | 2:27.16 | Scar Pan Am Winter Classic | 2026-01-16 |
| 200m IM | 2:24.99 | 2026 Central Region Div 1 SC Championships | 2026-02-06 |
| 400m Freestyle | 4:38.63 | Scar Pan Am Winter Classic | 2026-01-16 |
| 400m Freestyle | 4:28.68 | 2026 Central Region Div 1 SC Championships | 2026-02-06 |
| 50m Backstroke | 31.93 | 2025 Age Group International LC | 2025-06-05 |
| 50m Backstroke | 30.48 | Walker Invitational | 2025-10-25 |
| 50m Butterfly | 27.09 | 2025 Age Group International LC | 2025-06-05 |
| 50m Butterfly | 26.73 | 2025 NYAC Cup | 2025-11-14 |
| 50m Freestyle | 27.48 | 2025 Age Group International LC | 2025-06-05 |
| 50m Freestyle | 25.49 | 2026 Central Region Div 1 SC Championships | 2026-02-06 |
Medina, Tomas's top personal bests include 100m Backstroke (1:14.53), 100m Backstroke (1:02.20), 100m Butterfly (1:00.05), 100m Butterfly (59.52), 100m Freestyle (59.09).
Medina, Tomas swims for Oakville Aquatic Club.
Medina, Tomas has competed in 7 meets.