swimKai Matsumura
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 29.32 | BB+1.23s to A | 2026-02-28 | 2026 Winter ISI Regionals- HSC - copied fast pool |
| 200 Freestyle | SCY | 2:15.72 | BB+2.03s to A | 2026-03-01 | 2026 Winter ISI Regionals- HSC - copied fast pool |
| 50 Backstroke | SCY | 33.97 | BB+1.28s to A | 2026-02-28 | 2026 Winter ISI Regionals- HSC - copied fast pool |
| 100 Backstroke | SCY | 1:11.53 | BB+2.24s to A | 2026-03-01 | 2026 Winter ISI Regionals- HSC - copied fast pool |
| 100 Butterfly | SCY | 1:11.90 | BB+2.61s to A | 2026-02-28 | 2026 Winter ISI Regionals- HSC - copied fast pool |
| 100 Individual Medley | SCY | 1:10.46 | BB+0.47s to A | 2026-03-01 | 2026 Winter ISI Regionals- HSC - copied fast pool |
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 Freestyle | SCY | 29.93 | flat | 200 Free Relay | 2026-03-01 | 2026 Winter ISI Regionals- HSC - copied |
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
1130 points (2/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 100 BK SCY | 1:11.53 | 575 |
| 100 FL SCY | 1:11.90 | 555 |
| 500 FR SCY | — | 0 |
| 100 BR SCY | — | 0 |
| 200 IM SCY | — | 0 |
IMR 11-12 · SCY
1862 points (3/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 2:15.72 | 640 |
| 50 BK SCY | 33.97 | 571 |
| 100 IM SCY | 1:10.46 | 651 |
| 50 BR SCY | — | 0 |
| 50 FL SCY | — | 0 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
200 Freestyle SCY 2:15.72
Front half 64.88s · back half 70.84s
100 Backstroke SCY 1:11.53
Front half 34.79s · back half 36.74s
100 Butterfly SCY 1:11.90
Front half 34.01s · back half 37.89s
100 Individual Medley SCY 1:10.46
Front half 33.56s · back half 36.90s
Progression
Faster times are higher. One card per event, all courses & history.