swimWilliam Yan
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 28.87 | A+0.08s to AA·+5.68s to Sectionals | 2026-07-28 | Rose Post Summer Champs SCY Intrasquadvenue |
| 100 Freestyle | SCY | 1:01.72 | AA+1.93s to AAA·+10.73s to Sectionals | 2026-07-28 | Rose Post Summer Champs SCY Intrasquadvenue |
| 200 Freestyle | SCY | 2:22.25 | A+5.36s to AA·+30.46s to Sectionals | 2026-03-13 | 2026 SCS Spring Age Group Champs @ RMDA - copvenue |
| 50 Backstroke | SCY | 36.09 | BB+1.20s to A·+12.40s to Futures | 2026-03-13 | 2026 SCS Spring Age Group Champs @ RMDA - copvenue |
| 100 Backstroke | SCY | 1:18.71 | BB+3.12s to A·+23.22s to Sectionals | 2026-03-01 | 2026 Pacific Committee SC Chmpionshipvenue |
| 50 Breaststroke | SCY | 45.69 | B+2.50s to BB·+19.40s to Futures | 2025-11-22 | 2025 CANY Cranberryvenue |
| 100 Breaststroke | SCY | 1:41.21 | +0.92s to B·+38.02s to Sectionals | 2025-11-23 | 2025 CANY Cranberryvenue |
| 50 Butterfly | SCY | 35.57 | BB+1.88s to A·+12.68s to Futures | 2026-02-27 | 2026 Pacific Committee SC Chmpionshipvenue |
| 100 Butterfly | SCY | 1:32.15 | +1.66s to B·+36.96s to Sectionals | 2026-01-31 | BCA Winter Heatsvenue |
| 100 Individual Medley | SCY | 1:16.80 | BB+1.51s to A | 2026-02-28 | 2026 Pacific Committee SC Chmpionshipvenue |
| 200 Individual Medley | SCY | 2:51.10 | BB+7.41s to A·+47.11s to Sectionals | 2026-01-31 | BCA Winter Heatsvenue |
| 50 Freestyle | LCM | 31.78 | AA+0.39s to AAA·+4.79s to Sectionals | 2026-07-26 | 2026 CA SCS Summer A/G Champs @ BREAfast pool |
| 100 Freestyle | LCM | 1:09.79 | AA+0.80s to AAA·+10.80s to Sectionals | 2026-07-23 | 2026 CA SCS Summer A/G Champs @ BREAfast pool |
| 200 Freestyle | LCM | 2:35.59 | AA+6.50s to AAA·+26.90s to Sectionals | 2026-07-24 | 2026 CA SCS Summer A/G Champs @ BREAfast pool |
| 400 Freestyle | LCM | 5:39.70 | A+9.71s to AA·+65.31s to Sectionals | 2026-04-23 | Rose Spring LCM Intrasquadvenue |
| 50 Backstroke | LCM | 39.64 | A+1.15s to AA·+11.75s to Futures | 2026-07-10 | 2026 Summer Pacific Champs @BLAST - copied -venue |
| 100 Backstroke | LCM | 1:28.08 | A+3.99s to AA·+22.89s to Sectionals | 2026-06-14 | 2026 SCS June AG Invite-CANYvenue |
| 50 Breaststroke | LCM | 47.92 | BB+2.93s to A·+17.03s to Futures | 2026-06-07 | 2026 BCA June LC Meetvenue |
| 100 Breaststroke | LCM | 1:42.52 | BB+3.23s to A·+28.82s to Sectionals | 2026-06-13 | 2026 SCS June AG Invite-CANYvenue |
| 50 Butterfly | LCM | 40.78 | BB+2.79s to A·+14.49s to Futures | 2026-06-06 | 2026 BCA June LC Meetvenue |
| 100 Butterfly | LCM | 2:10.35 | +26.86s to B·+67.26s to Sectionals | 2025-06-28 | 2025 CA SBSC Semana Nautica LCM Meetvenue |
| 200 Individual Medley | LCM | 3:08.03 | BB+0.54s to A·+43.34s to Sectionals | 2026-06-06 | 2026 BCA June LC Meetvenue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 11.
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 | 28.69 | flying | 200 Medley Relay (leg 4) | 2026-03-14 | 2026 SCS Spring Age Group Champs @ RMDA - cop |
| 50 Freestyle | SCY | 29.66 | flying | 200 Free Relay (leg 2) | 2026-03-13 | 2026 SCS Spring Age Group Champs @ RMDA - cop |
| 50 Breaststroke | SCY | 49.95 | flying | 200 Medley Relay (leg 2) | 2025-09-21 | 2025 TSM Aquatics Season Opener |
| 50 Freestyle | LCM | 32.64 | flat | 200 Free Relay | 2026-06-13 | 2026 SCS June AG Invite-CANY |
| 50 Freestyle | LCM | 32.42 | flying | 200 Medley Relay (leg 4) | 2026-06-12 | 2026 SCS June AG Invite-CANY |
| 100 Freestyle | LCM | 1:09.41 | flat | 400 Free Relay | 2026-07-26 | 2026 CA SCS Summer A/G Champs @ BREA |
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
2216 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 400 FR LCM | 5:39.70 | 596 |
| 100 BK LCM | 1:28.08 | 510 |
| 100 BR LCM | 1:42.52 | 457 |
| 100 FL LCM | 2:10.35 | 140 |
| 200 IM LCM | 3:08.03 | 513 |
IMR 11-12 · LCM
2548 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR LCM | 2:35.59 | 644 |
| 50 BK LCM | 39.64 | 555 |
| 50 BR LCM | 47.92 | 427 |
| 50 FL LCM | 40.78 | 409 |
| 200 IM LCM | 3:08.03 | 513 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 1:01.72
Front half 29.19s · back half 32.53s
200 Freestyle SCY 2:22.25
Front half 68.00s · back half 74.25s
100 Backstroke SCY 1:18.71
Front half 37.90s · back half 40.81s
100 Breaststroke SCY 1:41.21
Front half 49.25s · back half 51.96s
100 Butterfly SCY 1:32.15
Front half 41.69s · back half 50.46s
100 Individual Medley SCY 1:16.80
Front half 35.68s · back half 41.12s
200 Individual Medley SCY 2:51.10
Front half 81.38s · back half 89.72s
200 Freestyle LCM 2:35.59
Front half 73.58s · back half 82.01s
400 Freestyle LCM 5:39.70
Front half 164.33s · back half 175.37s
100 Backstroke LCM 1:28.08
Front half 43.27s · back half 44.81s
100 Breaststroke LCM 1:42.52
Front half 48.47s · back half 54.05s
100 Butterfly LCM 2:10.35
Front half 57.61s · back half 72.74s
200 Individual Medley LCM 3:08.03
Front half 89.27s · back half 98.76s
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.
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.