swimWilliam Chen
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 21.89 | AAA+0.50s to AAAA·Sectionals ✓+0.60s to Futures | 2026-03-14 | 2026 Fl Swimming Spring Senior Championshipsvenue |
| 100 Freestyle | SCY | 48.68 | AAA+1.89s to AAAA·+0.39s to Sectionals | 2025-12-07 | 2025 Speedo Gator Holiday Classicfast pool |
| 200 Freestyle | SCY | 1:49.76 | AA+2.67s to AAA·+3.97s to Sectionals | 2025-12-05 | 2025 Speedo Gator Holiday Classicfast pool |
| 500 Freestyle | SCY | 5:17.47 | A+13.18s to AA·+31.38s to Sectionals | 2025-06-13 | 2025 USC Summer Splashvenue |
| 50 Backstroke | SCY | 26.77 | A+0.68s to AA·+1.08s to Sectionals | 2026-03-15 | 2026 Fl Swimming Spring Senior Championshipsvenue |
| 100 Backstroke | SCY | 59.74 | BB+1.65s to A·+4.65s to Sectionals | 2026-01-18 | 2026 G.O.A.T. TYR Team Challenge and SYOAvenue |
| 200 Backstroke | SCY | 2:19.34 | B+1.45s to BB·+17.05s to Sectionals | 2025-02-15 | 2025 USC Last Chance Invitevenue |
| 50 Breaststroke | SCY | 30.50 | A+0.31s to AA·+1.01s to Sectionals | 2025-12-07 | 2025 Speedo Gator Holiday Classicfast pool |
| 100 Breaststroke | SCY | 1:22.96 | +5.97s to B·+20.27s to Sectionals | 2024-02-10 | 2024 USC Last Chanceslow pool |
| 50 Butterfly | SCY | 24.89 | AAA+1.10s to AAAA·+0.60s to Sectionals | 2025-12-07 | 2025 Speedo Gator Holiday Classicfast pool |
| 100 Butterfly | SCY | 56.77 | A+1.48s to AA·+4.08s to Sectionals | 2025-09-21 | 2025 Tropic Like It's Hot Openvenue |
| 200 Butterfly | SCY | 2:17.81 | BB+8.62s to A·+19.32s to Sectionals | 2025-07-25 | 2025 Summer Area 4 Championshipsvenue |
| 100 Individual Medley | SCY | 59.16 | 2025-09-19 | 2025 Tropic Like It's Hot Openvenue | |
| 200 Individual Medley | SCY | 2:11.62 | BB+1.93s to A·+12.23s to Sectionals | 2025-09-20 | 2025 Tropic Like It's Hot Openvenue |
| 400 Individual Medley | SCY | 4:44.91 | BB+7.22s to A·+32.92s to Sectionals | 2025-06-13 | 2025 USC Summer Splashvenue |
| 50 Freestyle | LCM | 24.96 | AAA+0.17s to AAAA·Sectionals ✓+0.37s to Futures | 2026-07-18 | 2026 Florida Summer Senior Championshipsvenue |
| 100 Freestyle | LCM | 54.96 | AAA+1.07s to AAAA·Sectionals ✓+1.37s to Futures | 2026-07-19 | 2026 Florida Summer Senior Championshipsvenue |
| 200 Freestyle | LCM | 2:08.79 | AA+5.20s to AAA·+7.90s to Sectionals | 2025-06-07 | 2025 June Sprintsvenue |
| 400 Freestyle | LCM | 4:41.08 | A+5.39s to AA·+21.99s to Sectionals | 2025-06-21 | 2025 Planet Swim Summer Championshipsvenue |
| 50 Backstroke | LCM | 31.07 | AA+1.28s to AAA·+0.88s to Sectionals | 2026-06-18 | 2026 June Classicvenue |
| 100 Backstroke | LCM | 1:08.55 | BB+0.46s to A·+4.06s to Sectionals | 2025-06-20 | 2025 Planet Swim Summer Championshipsvenue |
| 50 Breaststroke | LCM | 36.75 | BB+0.86s to A·+2.56s to Sectionals | 2026-05-16 | 2026 FAST May Invitefast pool |
| 50 Butterfly | LCM | 27.14 | AAA+0.25s to AAAA·Sectionals ✓+0.85s to Futures | 2026-07-18 | 2026 Florida Summer Senior Championshipsvenue |
| 100 Butterfly | LCM | 1:05.93 | A+2.74s to AA·+5.44s to Sectionals | 2025-06-07 | 2025 June Sprintsvenue |
| 200 Individual Medley | LCM | 2:29.44 | A+4.45s to AA·+11.75s to Sectionals | 2025-05-17 | 2025 FAST May Invitevenue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 16.
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 | 22.36 | flat | 200 Free Relay | 2026-03-13 | 2026 Fl Swimming Spring Senior Championships |
| 50 Freestyle | SCY | 22.08 | flying | 200 Medley Relay (leg 4) | 2026-03-14 | 2026 Fl Swimming Spring Senior Championships |
| 50 Freestyle | SCY | 24.57 | flying | 200 Free Relay (leg 2) | 2024-03-01 | 2024 Florida Swimming FLAGS NORTH |
| 100 Freestyle | SCY | 48.67 | flat | 400 Free Relay | 2026-03-14 | 2026 Fl Swimming Spring Senior Championships |
| 100 Freestyle | SCY | 47.81 | flying | 400 Free Relay (leg 4) | 2025-12-05 | 2025 Speedo Gator Holiday Classic |
| 100 Freestyle | SCY | 49.06 | flying | 400 Medley Relay (leg 4) | 2026-03-13 | 2026 Fl Swimming Spring Senior Championships |
| 100 Backstroke | SCY | 57.81 | flat | 400 Medley Relay | 2025-12-06 | 2025 Speedo Gator Holiday Classic |
| 50 Butterfly | SCY | 24.61 | flying | 200 Medley Relay (leg 3) | 2025-03-08 | 2025 Florida Swimming FLAGS NORTH |
| 100 Butterfly | SCY | 57.25 | flying | 400 Medley Relay (leg 3) | 2025-03-06 | 2025 Florida Swimming FLAGS NORTH |
| 50 Freestyle | LCM | 24.96 | flat | 200 Free Relay | 2026-07-17 | 2026 Florida Summer Senior Championships |
| 50 Freestyle | LCM | 25.03 | flying | 200 Medley Relay (leg 4) | 2026-07-18 | 2026 Florida Summer Senior Championships |
| 100 Freestyle | LCM | 57.57 | flat | 400 Free Relay | 2025-07-19 | 2025 Florida Summer Senior Championships |
| 100 Freestyle | LCM | 56.05 | flying | 400 Free Relay (leg 3) | 2026-06-05 | 2026 FL SZSS Sectional Championships |
| 50 Butterfly | LCM | 25.56 | flying | 200 Medley Relay (leg 3) | 2024-07-11 | 2024 FL Summer Age Group Championships |
| 100 Butterfly | LCM | 1:06.04 | flying | 400 Medley Relay (leg 3) | 2025-06-20 | 2025 Planet Swim Summer Championships |
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 15-16 · SCY
2951 points (5/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 5:17.47 | 659 |
| 200 BK SCY | 2:19.34 | 501 |
| 200 FL SCY | 2:17.81 | 546 |
| 200 IM SCY | 2:11.62 | 636 |
| 400 IM SCY | 4:44.91 | 609 |
| 200 BR SCY | — | 0 |
IMR 15-16 · SCY
3083 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 1:49.76 | 802 |
| 100 BK SCY | 59.74 | 610 |
| 100 BR SCY | 1:22.96 | 336 |
| 100 FL SCY | 56.77 | 699 |
| 200 IM SCY | 2:11.62 | 636 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 48.68
Front half 23.41s · back half 25.27s
200 Freestyle SCY 1:49.76
Front half 52.81s · back half 56.95s
100 Backstroke SCY 59.74 RT 0.75s
Front half 28.33s · back half 31.41s
100 Butterfly SCY 56.77
Front half 25.73s · back half 31.04s
200 Butterfly SCY 2:17.81
Front half 64.10s · back half 73.71s
100 Individual Medley SCY 59.16
Front half 28.29s · back half 30.87s
200 Individual Medley SCY 2:11.62
Front half 62.09s · back half 69.53s
100 Freestyle LCM 54.96
Front half 26.89s · back half 28.07s
200 Freestyle LCM 2:08.79
Front half 64.01s · back half 64.78s
400 Freestyle LCM 4:41.08
100 Backstroke LCM 1:08.55
Front half 32.83s · back half 35.72s
100 Butterfly LCM 1:05.93
Front half 28.80s · back half 37.13s
200 Individual Medley LCM 2:29.44
Front half 67.65s · back half 81.79s
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.