swimLayna Chang
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 28.55 | BB+0.56s to A | 2026-01-24 | Orinda Aquatics SCY Senior Open Meet venue |
| 100 Freestyle | SCY | 1:00.22 | A+1.93s to AA | 2026-03-22 | SCY Spring Age Group Championships venue |
| 100 Backstroke | SCY | 1:09.53 | BB+3.34s to A | 2026-01-25 | Orinda Aquatics SCY Senior Open Meet venue |
| 50 Breaststroke | SCY | 34.34 | AA+1.25s to AAA | 2026-03-21 | SCY Spring Age Group Championships venue |
| 100 Breaststroke | SCY | 1:15.70 | A+2.81s to AA | 2026-01-25 | Orinda Aquatics SCY Senior Open Meet venue |
| 200 Breaststroke | SCY | 2:35.97 | AA+5.88s to AAA | 2026-03-20 | SCY Spring Age Group Championships venue |
| 100 Butterfly | SCY | 1:09.54 | BB+3.65s to A | 2026-02-28 | Swim South Bay venue |
| 200 Individual Medley | SCY | 2:28.77 | BB+0.88s to A | 2026-01-24 | Orinda Aquatics SCY Senior Open Meet venue |
| 50 Freestyle | LCM | 31.93 | A+1.24s to AA | 2026-06-20 | HISI Senior Summer Championship (LCM) venue |
| 100 Freestyle | LCM | 1:08.13 | A+1.44s to AA | 2026-06-19 | HISI Senior Summer Championship (LCM) venue |
| 400 Freestyle | LCM | 5:36.62 | BB+20.43s to A | 2024-05-25 | 2024 Mike Snyder Memorial |
| 100 Backstroke | LCM | 1:23.99 | B+0.40s to BB | 2024-05-25 | 2024 Mike Snyder Memorial |
| 50 Breaststroke | LCM | 40.25 | A+0.86s to AA | 2026-06-20 | HISI Senior Summer Championship (LCM) venue |
| 100 Breaststroke | LCM | 1:23.80 | AA+3.31s to AAA | 2026-06-19 | HISI Senior Summer Championship (LCM) venue |
| 200 Breaststroke | LCM | 3:00.80 | AA+7.31s to AAA | 2026-06-20 | HISI Senior Summer Championship (LCM) venue |
| 200 Individual Medley | LCM | 2:50.54 | BB+1.35s to A | 2026-06-18 | HISI Senior Summer Championship (LCM) venue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 14.
Fastest relay legs
| Leg | Course | Time | Start | Relay | Date | Meet |
|---|---|---|---|---|---|---|
| 50 Freestyle | SCY | 29.02 | flying | 200 Free Relay (leg 2) | 2026-03-20 | SCY Spring Age Group Championships |
| 100 Freestyle | SCY | 59.36 | flying | 400 Free Relay (leg 2) | 2026-03-22 | SCY Spring Age Group Championships |
| 50 Breaststroke | SCY | 33.62 | flying | 200 Medley Relay (leg 2) | 2026-03-21 | SCY Spring Age Group Championships |
| 50 Breaststroke | LCM | 39.53 | flying | 200 Medley Relay (leg 2) | 2026-06-18 | HISI Senior Summer Championship (LCM) |
| 100 Breaststroke | LCM | 1:23.67 | flying | 400 Medley Relay (leg 2) | 2026-06-19 | HISI Senior Summer Championship (LCM) |
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 13-14 · LCM
1967 points (3/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 400 FR LCM | 5:36.62 | 551 |
| 200 BR LCM | 3:00.80 | 764 |
| 200 IM LCM | 2:50.54 | 652 |
| 200 BK LCM | — | 0 |
| 200 FL LCM | — | 0 |
| 400 IM LCM | — | 0 |
IMR 13-14 · SCY
2463 points (4/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 100 BK SCY | 1:09.53 | 571 |
| 100 BR SCY | 1:15.70 | 677 |
| 100 FL SCY | 1:09.54 | 567 |
| 200 IM SCY | 2:28.77 | 648 |
| 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 1:00.22
Front half 29.07s · back half 31.15s
100 Backstroke SCY 1:09.53
Front half 34.23s · back half 35.30s
100 Breaststroke SCY 1:15.70
Front half 36.87s · back half 38.83s
200 Breaststroke SCY 2:35.97
Front half 76.08s · back half 79.89s
200 Individual Medley SCY 2:28.77
Front half 71.65s · back half 77.12s
100 Freestyle LCM 1:08.13
Front half 33.19s · back half 34.94s
400 Freestyle LCM 5:36.62 split/total mismatch
100 Backstroke LCM 1:23.99 split/total mismatch
Front half 41.12s · back half 42.87s
100 Breaststroke LCM 1:23.80
Front half 39.87s · back half 43.93s
200 Breaststroke LCM 3:00.80
Front half 87.74s · back half 93.06s
200 Individual Medley LCM 2:50.54
Front half 82.88s · back half 87.66s
Progression
Faster times are higher. One card per event, all courses & history.