Helin Liu
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 32.14 | B+0.45s to BB | 2025-02-07 | 2025 SE BSL Region 3 Championships |
| 100 Freestyle | SCY | 1:13.04 | B+3.65s to BB | 2024-11-09 | 2024 MSA Veterans Day venue |
| 50 Backstroke | SCY | 37.86 | B+1.77s to BB | 2022-09-17 | Birmingham Swim League |
| 100 Backstroke | SCY | 1:23.43 | B+3.64s to BB | 2025-02-07 | 2025 SE BSL Region 3 Championships |
| 50 Breaststroke | SCY | 41.63 | B+0.74s to BB | 2024-01-26 | 10th Annual Kyle Parker Invitational |
| 100 Breaststroke | SCY | 1:34.70 | B+5.31s to BB | 2024-09-21 | 2024 SE BSL Sprint Into Fall slow pool |
| 50 Butterfly | SCY | 37.12 | +0.13s to B | 2024-01-26 | 10th Annual Kyle Parker Invitational |
| 100 Butterfly | SCY | 1:30.16 | +4.07s to B | 2025-01-01 | 1570510 |
| 100 Individual Medley | SCY | 1:22.02 | B+2.83s to BB | 2024-01-26 | 10th Annual Kyle Parker Invitational |
| 200 Individual Medley | SCY | 3:01.14 | B+10.35s to BB | 2024-09-21 | 2024 SE BSL Sprint Into Fall slow pool |
| 100 Breaststroke | LCM | 1:48.87 | B+6.68s to BB | 2025-04-12 | 2025 SE BSL Carson Muir Cowgirl Classic |
| 200 Butterfly | LCM | 3:46.06 | +14.97s to B | 2025-04-12 | 2025 SE BSL Carson Muir Cowgirl Classic venue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 12.
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 Backstroke | SCY | 38.21 | flat | 200 Medley Relay | 2025-02-08 | 2025 SE BSL Region 3 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 11-12 · SCY
1616 points (4/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 100 BK SCY | 1:23.43 | 424 |
| 100 BR SCY | 1:34.70 | 430 |
| 100 FL SCY | 1:30.16 | 321 |
| 200 IM SCY | 3:01.14 | 441 |
| 500 FR SCY | — | 0 |
IMR 11-12 · SCY
1837 points (4/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 50 BK SCY | 37.86 | 453 |
| 50 BR SCY | 41.63 | 497 |
| 50 FL SCY | 37.12 | 415 |
| 100 IM SCY | 1:22.02 | 472 |
| 200 FR SCY | — | 0 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 1:13.04
Front half 34.71s · back half 38.33s
100 Breaststroke SCY 1:34.70
Front half 43.80s · back half 50.90s
100 Butterfly SCY 1:30.16
Front half 39.20s · back half 50.96s
100 Individual Medley SCY 1:22.02 split/total mismatch
Front half 37.40s · back half 44.62s
200 Individual Medley SCY 3:01.14
Front half 83.67s · back half 97.47s
200 Butterfly LCM 3:46.06
Front half 102.14s · back half 123.92s
Progression
Faster times are higher. One card per event, all courses & history.