Mason Wisniewski
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 25.21 | AA+0.82s to AAA | 2026-02-27 | 022726wyw results |
| 100 Freestyle | SCY | 50.37 | AAAA | 2025-12-05 | EGRA 2025 Winter Washout |
| 200 Freestyle | SCY | 2:01.28 | AA+5.19s to AAA | 2026-01-16 | GRYM January Invite venue |
| 500 Freestyle | SCY | 5:28.80 | A+1.31s to AA | 2026-01-16 | GRYM January Invite venue |
| 1650 Freestyle | SCY | 19:22.96 | A+23.27s to AA | 2025-11-14 | 2025 Water Rat Age Group Qualifier |
| 50 Backstroke | SCY | 29.16 | A+0.07s to AA | 2026-03-12 | 2026 CT SC Age Group Championships fast pool |
| 100 Backstroke | SCY | 1:01.43 | A+0.34s to AA | 2026-01-16 | GRYM January Invite venue |
| 200 Backstroke | SCY | 2:12.71 | AA+5.32s to AAA | 2026-03-12 | 2026 CT SC Age Group Championships fast pool |
| 50 Breaststroke | SCY | 36.76 | BB+2.07s to A | 2025-10-10 | 2025 Marlins October Invite |
| 100 Breaststroke | SCY | 1:15.44 | BB+3.15s to A | 2026-02-27 | 022726wyw results |
| 200 Breaststroke | SCY | 3:00.92 | B+11.03s to BB | 2024-11-15 | 2024 Water Rat Age Group Qualifier |
| 25 Butterfly | SCY | 53.79 | 2022-10-22 | CT CDOG IMX Meet venue | |
| 50 Butterfly | SCY | 27.51 | AA+0.22s to AAA | 2025-12-13 | 2025 Holiday Cup |
| 100 Butterfly | SCY | 1:01.58 | A+0.99s to AA | 2026-02-27 | 022726wyw results |
| 100 Individual Medley | SCY | 1:10.95 | 2025-01-17 | 011725grym results | |
| 200 Individual Medley | SCY | 2:15.93 | A+0.64s to AA | 2026-02-27 | 022726wyw results |
| 400 Individual Medley | SCY | 4:40.71 | AA+3.52s to AAA | 2026-02-13 | 2026 WYW Last Chance Distance venue |
| 50 Freestyle | LCM | 37.53 | +1.84s to B | 2026-06-26 | 2026 JAWS Sun & Fun ABC Spectacular & IMX venue |
| 100 Freestyle | LCM | 1:02.40 | AA+0.91s to AAA | 2026-06-05 | GRYM June Invite venue |
| 400 Freestyle | LCM | 6:28.92 | +29.03s to B | 2025-06-13 | 2025 JAWS Sun & Fun venue |
| 50 Backstroke | LCM | 41.61 | +0.42s to B | 2024-07-21 | 072024wyw 12u reg results |
| 100 Backstroke | LCM | 1:32.49 | +5.10s to B | 2026-06-26 | 2026 JAWS Sun & Fun ABC Spectacular & IMX venue |
| 100 Breaststroke | LCM | 1:39.68 | +2.49s to B | 2023-05-20 | CT ZEUS LCM May Invite slow pool |
| 50 Butterfly | LCM | 38.56 | B+2.27s to BB | 2024-06-07 | GRYM June Invite venue |
| 200 Butterfly | LCM | 2:46.51 | BB+4.52s to A | 2026-06-05 | GRYM June Invite venue |
| 200 Individual Medley | LCM | 2:32.40 | AA+2.81s to AAA | 2026-06-05 | GRYM June Invite venue |
| 400 Individual Medley | LCM | 5:28.37 | AA+8.78s to AAA | 2026-05-15 | CPAC May AGQ venue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 13.
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 | 37.59 | flying | 200 Free Relay (leg 3) | 2024-07-16 | 2024 WMSL Summer A Championship |
| 50 Backstroke | SCY | 39.10 | flat | 200 Medley Relay | 2025-01-11 | 2025 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 13-14 · SCY
3125 points (5/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 5:28.80 | 681 |
| 200 BK SCY | 2:12.71 | 667 |
| 200 BR SCY | 3:00.92 | 381 |
| 200 IM SCY | 2:15.93 | 662 |
| 400 IM SCY | 4:40.71 | 734 |
| 200 FL SCY | — | 0 |
IMR 13-14 · SCY
3151 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 2:01.28 | 684 |
| 100 BK SCY | 1:01.43 | 660 |
| 100 BR SCY | 1:15.44 | 512 |
| 100 FL SCY | 1:01.58 | 633 |
| 200 IM SCY | 2:15.93 | 662 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
200 Freestyle SCY 2:01.28 split/total mismatch
500 Freestyle SCY 5:28.80 split/total mismatch
1650 Freestyle SCY 19:22.96
100 Backstroke SCY 1:01.43 split/total mismatch
Front half 30.27s · back half 31.16s
200 Breaststroke SCY 3:00.92
Front half 87.55s · back half 93.37s
400 Individual Medley SCY 4:40.71 split/total mismatch
100 Freestyle LCM 1:02.40 split/total mismatch
Front half 30.41s · back half 31.99s
400 Freestyle LCM 6:28.92
Front half 189.26s · back half 199.66s
100 Backstroke LCM 1:32.49
Front half 47.56s · back half 44.93s
100 Breaststroke LCM 1:39.68
50 Butterfly LCM 38.56 split/total mismatch
200 Butterfly LCM 2:46.51 split/total mismatch
Front half 39.65s · back half 126.86s
200 Individual Medley LCM 2:32.40 split/total mismatch
400 Individual Medley LCM 5:28.37 split/total mismatch
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.