swimEmma Kurokoshi
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | LCM | 30.10 | AAAA·+0.51s to Sectionals | 2026-07-26 | 2026 CA SCS Summer A/G Champs @ BREAfast pool |
| 50 Breaststroke | LCM | 39.13 | AAAA·+4.34s to Futures | 2025-07-24 | 2025 CA SCS Summer A/G Champs |
| 100 Breaststroke | LCM | 1:24.56 | AAAA·+3.57s to Sectionals | 2026-07-26 | 2026 CA SCS Summer A/G Champs @ BREAfast pool |
| 50 Butterfly | LCM | 31.55 | AAAA·+2.06s to Futures | 2026-07-25 | 2026 CA SCS Summer A/G Champs @ BREAfast pool |
| 100 Butterfly | LCM | 1:14.82 | AAA+0.33s to AAAA·+5.53s to Sectionals | 2025-07-24 | 2025 CA SCS Summer A/G Champs |
| 200 Individual Medley | LCM | 2:37.65 | AAAA·+0.66s to Sectionals | 2026-07-25 | 2026 CA SCS Summer A/G Champs @ BREAfast pool |
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 | LCM | 32.39 | flat | 200 Free Relay | 2025-07-24 | 2025 CA SCS Summer A/G Champs |
| 50 Backstroke | LCM | 39.01 | flat | 200 Medley Relay | 2025-07-24 | 2025 CA SCS Summer A/G Champs |
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 · LCM
2756 points (3/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 100 BR LCM | 1:24.56 | 904 |
| 100 FL LCM | 1:14.82 | 846 |
| 200 IM LCM | 2:37.65 | 1006 |
| 400 FR LCM | — | 0 |
| 100 BK LCM | — | 0 |
IMR 11-12 · LCM
2862 points (3/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 50 BR LCM | 39.13 | 872 |
| 50 FL LCM | 31.55 | 984 |
| 200 IM LCM | 2:37.65 | 1006 |
| 200 FR LCM | — | 0 |
| 50 BK LCM | — | 0 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Breaststroke LCM 1:24.56 RT 0.61s
Front half 39.58s · back half 44.98s
100 Butterfly LCM 1:14.82 RT 0.62s
Front half 34.30s · back half 40.52s
200 Individual Medley LCM 2:37.65 RT 0.39s
Front half 75.86s · back half 81.79s
Reaction time
From electronically-timed starts only (~2% of corpus swims carry a reaction time). PRs with a recorded reaction show an RT chip in the splits section above.
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.