swimJoon Cha
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 33.13 | 2026-03-29 | LAMV C/B/A+ Meet venue | |
| 100 Freestyle | SCY | 1:10.40 | 2026-03-22 | SCY Spring Age Group Championships venue | |
| 200 Freestyle | SCY | 2:31.12 | 2026-03-20 | SCY Spring Age Group Championships venue | |
| 500 Freestyle | SCY | 6:39.80 | 2026-02-07 | PASA CBA+ SCY Meet Feb 2026 venue | |
| 50 Backstroke | SCY | 41.10 | 2026-04-26 | 2026 Pacific Swimming Zone All Star Meet venue | |
| 100 Backstroke | SCY | 1:23.28 | 2026-03-29 | LAMV C/B/A+ Meet venue | |
| 50 Breaststroke | SCY | 48.18 | 2026-01-24 | 2026 Zone 1 North Championships venue | |
| 50 Butterfly | SCY | 34.15 | 2026-04-11 | 2026 Far Western SC Hosted By SCSC venue | |
| 100 Butterfly | SCY | 1:18.98 | 2026-04-12 | 2026 Far Western SC Hosted By SCSC venue | |
| 100 Individual Medley | SCY | 1:25.90 | 2026-01-24 | 2026 Zone 1 North Championships venue | |
| 200 Individual Medley | SCY | 2:53.69 | 2026-03-28 | LAMV C/B/A+ Meet venue | |
| 50 Freestyle | LCM | 35.46 | 2026-06-28 | SUNN Silicon Valley CBA+ LCM venue | |
| 100 Freestyle | LCM | 1:17.12 | 2026-06-27 | SUNN Silicon Valley CBA+ LCM venue | |
| 200 Freestyle | LCM | 2:41.79 | 2026-06-27 | SUNN Silicon Valley CBA+ LCM venue | |
| 400 Freestyle | LCM | 5:40.68 | 2026-06-12 | 2026 DACA LC CBA Meet venue | |
| 50 Backstroke | LCM | 46.31 | 2026-06-14 | 2026 DACA LC CBA Meet venue | |
| 100 Backstroke | LCM | 1:34.05 | 2026-06-13 | 2026 DACA LC CBA Meet venue | |
| 50 Breaststroke | LCM | 53.31 | 2026-05-02 | Alto Spring Jam CBA venue | |
| 100 Breaststroke | LCM | 1:51.04 | 2026-06-14 | 2026 DACA LC CBA Meet venue | |
| 50 Butterfly | LCM | 36.61 | 2026-06-27 | SUNN Silicon Valley CBA+ LCM venue | |
| 100 Butterfly | LCM | 1:22.93 | 2026-06-13 | 2026 DACA LC CBA Meet venue | |
| 200 Individual Medley | LCM | 3:04.46 | 2026-06-28 | SUNN Silicon Valley CBA+ LCM venue |
Fastest relay legs
| Leg | Course | Time | Start | Relay | Date | Meet |
|---|---|---|---|---|---|---|
| 50 Freestyle | SCY | 34.66 | flying | 200 Free Relay (leg 3) | 2026-01-24 | 2026 Zone 1 North Championships |
| 50 Freestyle | SCY | 31.24 | flying | 200 Medley Relay (leg 4) | 2026-03-21 | SCY Spring Age Group Championships |
| 50 Butterfly | SCY | 34.70 | flying | 200 Medley Relay (leg 3) | 2026-01-25 | 2026 Zone 1 North 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 10 & under · LCM
3698 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR LCM | 2:41.79 | 824 |
| 100 BK LCM | 1:34.05 | 615 |
| 100 BR LCM | 1:51.04 | 563 |
| 100 FL LCM | 1:22.93 | 883 |
| 200 IM LCM | 3:04.46 | 813 |
IMR 10 & under · LCM
3384 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 100 FR LCM | 1:17.12 | 741 |
| 50 BK LCM | 46.31 | 509 |
| 50 BR LCM | 53.31 | 471 |
| 50 FL LCM | 36.61 | 850 |
| 200 IM LCM | 3:04.46 | 813 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 1:10.40
Front half 33.26s · back half 37.14s
200 Freestyle SCY 2:31.12
Front half 72.78s · back half 78.34s
100 Backstroke SCY 1:23.28
Front half 41.72s · back half 41.56s
100 Butterfly SCY 1:18.98
Front half 36.14s · back half 42.84s
100 Individual Medley SCY 1:25.90
Front half 39.74s · back half 46.16s
200 Individual Medley SCY 2:53.69
Front half 84.27s · back half 89.42s
Progression
Faster times are higher. One card per event, all courses & history.