swimWilliam Larson
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 27.10 | A+0.11s to AA·+4.71s to Sectionals | 2026-03-14 | 2026 Shawmut NE Cup Championshipvenue |
| 100 Freestyle | SCY | 55.18 | AAA+1.49s to AAAA·+6.69s to Sectionals | 2026-02-19 | 2026 NE CRA SCY 11-14 Championship |
| 200 Freestyle | SCY | 2:10.84 | A+2.65s to AA·+24.55s to Sectionals | 2026-11-07 | 2026 NE SAC Turkey Splashvenue |
| 500 Freestyle | SCY | 5:59.61 | A+14.62s to AA·+72.22s to Sectionals | 2026-10-25 | 2026 NE SAC Spooktacularvenue |
| 1000 Freestyle | SCY | 12:53.93 | BB+16.64s to A·+174.44s to Sectionals | 2026-01-17 | 2026 NE SAC Bronze Championshipsvenue |
| 50 Backstroke | SCY | 29.72 | AA+0.03s to AAA·+6.03s to Futures | 2026-01-01 | 2026 ne sac spooktacular results |
| 100 Backstroke | SCY | 1:03.53 | AA+0.74s to AAA·+9.04s to Sectionals | 2026-11-08 | 2026 NE SAC Turkey Splashvenue |
| 200 Backstroke | SCY | 2:16.11 | AA+0.22s to AAA·+17.52s to Sectionals | 2026-11-07 | 2026 NE SAC Turkey Splashvenue |
| 50 Breaststroke | SCY | 38.45 | BB+1.76s to A·+12.16s to Futures | 2026-02-01 | 2026 NE CS Silver Championshipsfast pool |
| 100 Breaststroke | SCY | 1:23.44 | BB+5.05s to A·+21.95s to Sectionals | 2026-10-24 | 2026 NE SAC Spooktacularvenue |
| 200 Breaststroke | SCY | 3:17.18 | +0.69s to B·+62.19s to Sectionals | 2025-01-01 | 2025 spooktacular mit results |
| 50 Butterfly | SCY | 28.98 | AA+0.79s to AAA·+6.09s to Futures | 2026-01-01 | 2026 ne sac turkey splash results |
| 100 Butterfly | SCY | 1:09.53 | BB+0.24s to A·+16.34s to Sectionals | 2026-10-25 | 2026 NE SAC Spooktacularvenue |
| 100 Individual Medley | SCY | 1:07.48 | A+0.49s to AA | 2026-10-25 | 2026 NE SAC Spooktacularvenue |
| 200 Individual Medley | SCY | 2:26.49 | A+0.90s to AA·+27.10s to Sectionals | 2026-11-06 | 2026 NE SAC Turkey Splashvenue |
| 400 Individual Medley | SCY | 5:32.51 | BB+9.02s to A·+77.42s to Sectionals | 2026-01-16 | 2026 NE SAC Bronze Championshipsvenue |
| 50 Freestyle | LCM | 30.43 | AA+1.04s to AAA·+4.94s to Sectionals | 2026-07-17 | 2026 NE MST/ESC LCM 12 & Under Championshipvenue |
| 100 Freestyle | LCM | 1:07.43 | AA+2.94s to AAA·+11.94s to Sectionals | 2026-07-19 | 2026 NE MST/ESC LCM 12 & Under Championshipvenue |
| 200 Freestyle | LCM | 2:34.55 | BB+0.96s to A·+33.26s to Sectionals | 2026-01-01 | NE CS 2026 Summer Solstice at Brown University |
| 400 Freestyle | LCM | 5:23.55 | A+10.46s to AA·+65.96s to Sectionals | 2026-01-01 | NE CS 2026 Summer Solstice at Brown University |
| 50 Backstroke | LCM | 34.27 | AAA+1.58s to AAAA·+6.38s to Futures | 2026-01-01 | 2026 NE SHAWMUT America's Cup |
| 100 Backstroke | LCM | 1:13.68 | AAA+3.29s to AAAA·+11.69s to Sectionals | 2026-01-01 | NE CS 2026 Summer Solstice at Brown University |
| 200 Backstroke | LCM | 2:39.49 | AAA+7.30s to AAAA·+24.70s to Sectionals | 2026-07-17 | 2026 NE MST/ESC LCM 12 & Under Championshipvenue |
| 50 Breaststroke | LCM | 46.77 | B+0.88s to BB·+15.88s to Futures | 2025-01-01 | 2025 ne sac may madness results |
| 100 Breaststroke | LCM | 1:41.79 | B+2.20s to BB·+32.10s to Sectionals | 2026-01-01 | 2026 ne cs spring fling results |
| 200 Breaststroke | LCM | 3:37.35 | B+5.76s to BB·+64.76s to Sectionals | 2026-01-01 | 2026 ne cs spring fling results |
| 50 Butterfly | LCM | 33.39 | AA+1.40s to AAA·+7.10s to Futures | 2026-07-17 | 2026 NE MST/ESC LCM 12 & Under Championshipvenue |
| 100 Butterfly | LCM | 1:16.96 | A+1.37s to AA·+16.77s to Sectionals | 2026-07-18 | 2026 NE MST/ESC LCM 12 & Under Championshipvenue |
| 200 Individual Medley | LCM | 3:06.80 | BB+12.61s to A·+50.61s to Sectionals | 2025-06-22 | 2025 NE CS June Summer Solsticevenue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 12.
National cuts (Sectionals → Nationals) are the current-season meet qualifying times for the swimmer's zone and age group; ✓ marks the hardest cut already achieved.
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 | 27.72 | flat | 200 Free Relay | 2025-12-12 | 2025 NE SHAWMUT Candy Cane Classic |
| 50 Freestyle | SCY | 29.78 | flying | 200 Medley Relay (leg 4) | 2025-02-01 | 2025 NE SAC Silver Championships |
| 50 Freestyle | SCY | 26.69 | flying | 200 Free Relay (leg 2) | 2026-11-07 | 2026 NE SAC Turkey Splash |
| 50 Backstroke | SCY | 29.49 | flat | 200 Medley Relay | 2026-11-08 | 2026 NE SAC Turkey Splash |
| 100 Backstroke | SCY | 1:08.64 | flat | 400 Medley Relay | 2026-02-20 | 2026 NE CRA SCY 11-14 Championship |
| 50 Breaststroke | SCY | 35.44 | flying | 200 Medley Relay (leg 2) | 2026-01-31 | 2026 NE CS Silver Championships |
| 50 Butterfly | SCY | 30.14 | flying | 200 Medley Relay (leg 3) | 2026-01-17 | 2026 NE SAC Bronze Championships |
| 50 Freestyle | LCM | 33.21 | flat | 200 Free Relay | 2025-06-28 | 2025 NE SAC America's Cup |
| 100 Freestyle | LCM | 1:22.92 | flat | 400 Free Relay | 2024-07-12 | 2024 NE MST/ESC LCM 10 & U Champs |
| 100 Freestyle | LCM | 20.25 | flying | 400 Free Relay (leg 2) | 2025-07-18 | 2025 NE CS LCM 11-14 Championships |
| 50 Backstroke | LCM | 36.43 | flat | 200 Medley Relay | 2025-05-18 | 2025 NE SAC May Madness |
| 100 Backstroke | LCM | 1:14.13 | flat | 400 Medley Relay | 2026-07-17 | 2026 NE MST/ESC LCM 12 & Under Championship |
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 · SCY
3375 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 5:59.61 | 672 |
| 100 BK SCY | 1:03.53 | 821 |
| 100 BR SCY | 1:23.44 | 536 |
| 100 FL SCY | 1:09.53 | 613 |
| 200 IM SCY | 2:26.49 | 733 |
IMR 11-12 · SCY
3638 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 2:10.84 | 714 |
| 50 BK SCY | 29.72 | 853 |
| 50 BR SCY | 38.45 | 549 |
| 50 FL SCY | 28.98 | 781 |
| 100 IM SCY | 1:07.48 | 741 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
200 Freestyle SCY 2:10.84
Front half 62.59s · back half 68.25s
500 Freestyle SCY 5:59.61
Front half 180.15s · back half 179.46s
1000 Freestyle SCY 12:53.93
Front half 386.73s · back half 387.20s
100 Backstroke SCY 1:03.53
Front half 31.44s · back half 32.09s
200 Backstroke SCY 2:16.11
Front half 67.75s · back half 68.36s
100 Breaststroke SCY 1:23.44
Front half 39.96s · back half 43.48s
200 Breaststroke SCY 3:17.18 split/total mismatch
100 Butterfly SCY 1:09.53
Front half 32.81s · back half 36.72s
100 Individual Medley SCY 1:07.48
Front half 30.57s · back half 36.91s
200 Individual Medley SCY 2:26.49
Front half 66.52s · back half 79.97s
400 Individual Medley SCY 5:32.51
Front half 158.86s · back half 173.65s
200 Freestyle LCM 2:34.55 split/total mismatch
400 Freestyle LCM 5:23.55 split/total mismatch
100 Backstroke LCM 1:13.68 split/total mismatch
Front half 36.08s · back half 37.60s
200 Backstroke LCM 2:39.49
Front half 79.30s · back half 80.19s
100 Breaststroke LCM 1:41.79 split/total mismatch
Front half 47.60s · back half 54.19s
200 Breaststroke LCM 3:37.35 split/total mismatch
200 Individual Medley LCM 3:06.80
Swim history
Every recorded swim, newest first
| Date | Event | Course | Time | Age | Round | Meet |
|---|
Individual swims with a recorded date and time — including disqualifications — plus reconstructed relay legs (marked). Assembled in the browser from this page’s data.
Progression
Faster times are higher. One card per event, all courses & history.