swimJiayin Chen
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 31.28 | BB+1.19s to A·+8.89s to Sectionals | 2024-09-21 | 2024 NE NSSC September Sprints MITvenue |
| 100 Freestyle | SCY | 1:12.68 | B+2.09s to BB·+24.19s to Sectionals | 2024-10-18 | 2024 NE NSSC Halloween Classicvenue |
| 200 Freestyle | SCY | 2:41.55 | B+6.86s to BB·+55.26s to Sectionals | 2024-09-21 | 2024 NE NSSC September Sprints MITvenue |
| 50 Backstroke | SCY | 35.72 | BB+0.83s to A·+12.03s to Futures | 2025-03-15 | 2025 NE NSSC Prelims/Finals at PAvenue |
| 100 Backstroke | SCY | 1:23.78 | B+1.09s to BB·+29.29s to Sectionals | 2024-10-18 | 2024 NE NSSC Halloween Classicvenue |
| 50 Breaststroke | SCY | 44.60 | B+1.41s to BB·+18.31s to Futures | 2024-10-18 | 2024 NE NSSC Halloween Classicvenue |
| 100 Breaststroke | SCY | 1:33.65 | B+1.06s to BB·+32.16s to Sectionals | 2025-03-15 | 2025 NE NSSC Prelims/Finals at PAvenue |
| 50 Butterfly | SCY | 39.37 | B+2.48s to BB·+16.48s to Futures | 2024-11-23 | 2024 NE NSSC Prelims/Finals at PAvenue |
| 100 Individual Medley | SCY | 1:20.79 | BB+5.50s to A | 2024-11-23 | 2024 NE NSSC Prelims/Finals at PAvenue |
| 200 Individual Medley | SCY | 3:04.08 | B+5.89s to BB·+64.69s to Sectionals | 2024-10-18 | 2024 NE NSSC Halloween Classicvenue |
| 50 Freestyle | LCM | 37.23 | B+0.14s to BB·+11.74s to Sectionals | 2024-06-29 | 2024 NE NSSC June 28 MIT Specialtyvenue |
| 100 Freestyle | LCM | 1:22.39 | B+0.90s to BB·+26.90s to Sectionals | 2024-06-29 | 2024 NE NSSC June 28 MIT Specialtyvenue |
| 50 Backstroke | LCM | 45.94 | B+1.95s to BB·+18.05s to Futures | 2024-06-29 | 2024 NE NSSC June 28 MIT Specialtyvenue |
| 100 Backstroke | LCM | 1:38.24 | B+1.75s to BB·+36.25s to Sectionals | 2022-07-29 | SAQ-NSSC End of Season Champsfast pool |
| 50 Breaststroke | LCM | 52.71 | B+3.52s to BB·+21.82s to Futures | 2024-06-29 | 2024 NE NSSC June 28 MIT Specialtyvenue |
| 100 Breaststroke | LCM | 1:55.07 | B+6.88s to BB·+45.38s to Sectionals | 2024-06-29 | 2024 NE NSSC June 28 MIT Specialtyvenue |
| 50 Butterfly | LCM | 48.58 | +3.29s to B·+22.29s to Futures | 2024-06-29 | 2024 NE NSSC June 28 MIT Specialtyvenue |
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 | 25.10 | flying | 200 Medley Relay (leg 4) | 2024-09-21 | 2024 NE NSSC September Sprints MIT |
| 50 Freestyle | SCY | 30.20 | flying | 200 Free Relay (leg 4) | 2024-09-21 | 2024 NE NSSC September Sprints MIT |
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
1106 points (3/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 100 BK SCY | 1:23.78 | 358 |
| 100 BR SCY | 1:33.65 | 379 |
| 200 IM SCY | 3:04.08 | 369 |
| 500 FR SCY | — | 0 |
| 100 FL SCY | — | 0 |
IMR 11-12 · SCY
1964 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 2:41.55 | 379 |
| 50 BK SCY | 35.72 | 491 |
| 50 BR SCY | 44.60 | 351 |
| 50 FL SCY | 39.37 | 311 |
| 100 IM SCY | 1:20.79 | 432 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 1:12.68
Front half 33.34s · back half 39.34s
200 Freestyle SCY 2:41.55
Front half 76.23s · back half 85.32s
100 Backstroke SCY 1:23.78
Front half 39.69s · back half 44.09s
100 Breaststroke SCY 1:33.65
Front half 43.58s · back half 50.07s
100 Individual Medley SCY 1:20.79
Front half 37.04s · back half 43.75s
200 Individual Medley SCY 3:04.08
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.