swimLeah Mason
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 27.56 | AAA+0.77s to AAAA | 2025-11-15 | 2025 GR Gales of November Open Invitational |
| 100 Freestyle | SCY | 1:19.06 | +1.37s to B | 2026-06-13 | 2026 JAWS Wildcat Summer Invite venue |
| 200 Freestyle | SCY | 2:46.51 | B+9.42s to BB | 2026-06-13 | 2026 JAWS Wildcat Summer Invite venue |
| 50 Backstroke | SCY | 33.74 | A+0.35s to AA | 2026-03-07 | 2026 Lake Michigan Regional Meet |
| 100 Backstroke | SCY | 1:28.06 | B+4.47s to BB | 2025-12-13 | 2025 Holiday Cup |
| 50 Breaststroke | SCY | 42.01 | BB+3.02s to A | 2026-02-07 | 2026 Grand Rapids Open |
| 100 Breaststroke | SCY | 1:38.36 | B+5.47s to BB | 2026-06-13 | 2026 JAWS Wildcat Summer Invite venue |
| 25 Butterfly | SCY | 19.61 | 2026-03-01 | 2026 JAWS "Last Chance" Meet venue | |
| 100 Individual Medley | SCY | 1:29.57 | +0.88s to B | 2026-06-13 | 2026 JAWS Wildcat Summer Invite venue |
| 50 Freestyle | LCM | 39.45 | B+1.86s to BB | 2026-06-27 | 2026 JAWS Sun & Fun ABC Spectacular & IMX venue |
| 100 Freestyle | LCM | 1:24.58 | B+1.79s to BB | 2026-06-28 | 2026 JAWS Sun & Fun ABC Spectacular & IMX venue |
| 200 Freestyle | LCM | 2:59.57 | B+0.38s to BB | 2026-06-27 | 2026 JAWS Sun & Fun ABC Spectacular & IMX venue |
| 50 Backstroke | LCM | 48.73 | +1.94s to B | 2026-06-28 | 2026 JAWS Sun & Fun ABC Spectacular & IMX venue |
| 100 Backstroke | LCM | 1:43.92 | B+6.43s to BB | 2026-06-27 | 2026 JAWS Sun & Fun ABC Spectacular & IMX venue |
| 50 Breaststroke | LCM | 52.71 | +0.42s to B | 2026-06-06 | MLA Big Red Challenge fast pool |
| 100 Breaststroke | LCM | 1:50.80 | B+3.51s to BB | 2026-06-27 | 2026 JAWS Sun & Fun ABC Spectacular & IMX venue |
| 200 Breaststroke | LCM | 3:52.61 | B+2.02s to BB | 2026-06-06 | MLA Big Red Challenge fast pool |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 11.
Pool tags are a venue speed heuristic (median deviation of all swims there vs each swimmer's typical time) — see the venue page for the method.
Fastest relay legs
| Leg | Course | Time | Start | Relay | Date | Meet |
|---|---|---|---|---|---|---|
| 50 Freestyle | SCY | 57.24 | flying | 200 Free Relay (leg 3) | 2026-03-07 | 2026 Lake Michigan Regional Meet |
| 50 Breaststroke | SCY | 49.21 | flying | 200 Medley Relay (leg 2) | 2026-01-10 | 2026 Zeeland Winter Classic |
Reconstructed from relay split marks. Flat = lead-off (comparable to individual times); flying starts run ~0.5–0.7s fast and are not PRs.
IMX / IMR
IMX 11-12 · LCM
747 points (2/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 100 BK LCM | 1:43.92 | 345 |
| 100 BR LCM | 1:50.80 | 402 |
| 400 FR LCM | — | 0 |
| 100 FL LCM | — | 0 |
| 200 IM LCM | — | 0 |
IMR 11-12 · SCY
1878 points (4/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 2:46.51 | 392 |
| 50 BK SCY | 33.74 | 640 |
| 50 BR SCY | 42.01 | 484 |
| 100 IM SCY | 1:29.57 | 362 |
| 50 FL SCY | — | 0 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 1:19.06
Front half 38.68s · back half 40.38s
200 Freestyle SCY 2:46.51
Front half 81.70s · back half 84.81s
100 Breaststroke SCY 1:38.36
Front half 46.50s · back half 51.86s
100 Individual Medley SCY 1:29.57
Front half 43.07s · back half 46.50s
100 Freestyle LCM 1:24.58
Front half 42.39s · back half 42.19s
200 Freestyle LCM 2:59.57
Front half 88.45s · back half 91.12s
100 Backstroke LCM 1:43.92
Front half 51.51s · back half 52.41s
100 Breaststroke LCM 1:50.80
Front half 54.14s · back half 56.66s
200 Breaststroke LCM 3:52.61
Front half 113.49s · back half 119.12s
Reaction time
From electronically-timed starts only (~2% of corpus swims carry a reaction time). PRs with a recorded reaction show an RT chip in the splits section above.
Progression
Faster times are higher. One card per event, all courses & history.