swimEthan Hasegawa
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 34.15 | BB+2.96s to A·+11.56s to Sectionals | 2026-07-18 | 2026 ISI Summer PAC Regionalfast pool |
| 100 Freestyle | SCY | 1:15.72 | BB+5.53s to A·+26.73s to Sectionals | 2026-07-19 | 2026 ISI Summer PAC Regionalfast pool |
| 200 Freestyle | SCY | 2:53.06 | B+2.37s to BB·+65.57s to Sectionals | 2026-03-01 | 2026 Winter ISI Regionals- PACfast pool |
| 500 Freestyle | SCY | 7:24.81 | BB+41.22s to A·+151.92s to Sectionals | 2026-07-17 | 2026 ISI Summer PAC Regionalfast pool |
| 50 Breaststroke | SCY | 44.82 | BB+2.73s to A·+17.63s to Sectionals | 2026-07-19 | 2026 ISI Summer PAC Regionalfast pool |
| 100 Breaststroke | SCY | 1:37.95 | BB+6.26s to A·+34.36s to Sectionals | 2026-07-18 | 2026 ISI Summer PAC Regionalfast pool |
| 50 Butterfly | SCY | 40.32 | BB+4.23s to A·+16.63s to Sectionals | 2026-03-01 | 2026 Winter ISI Regionals- PACfast pool |
| 200 Individual Medley | SCY | 3:18.43 | B+2.44s to BB·+77.44s to Sectionals | 2026-02-28 | 2026 Winter ISI Regionals- PACfast pool |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 10.
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 | SCY | 33.95 | flying | 200 Free Relay (leg 4) | 2026-03-01 | 2026 Winter ISI Regionals- PAC |
| 50 Breaststroke | SCY | 44.73 | flying | 200 Medley Relay (leg 2) | 2026-07-18 | 2026 ISI Summer PAC Regional |
| 50 Freestyle | LCM | 37.51 | flying | 200 Free Relay (leg 2) | 2026-07-25 | 2026 ISI LC 10&U Age Group 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 · SCY
1409 points (3/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 2:53.06 | 450 |
| 100 BR SCY | 1:37.95 | 520 |
| 200 IM SCY | 3:18.43 | 439 |
| 100 BK SCY | — | 0 |
| 100 FL SCY | — | 0 |
IMR 10 & under · SCY
1494 points (3/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 100 FR SCY | 1:15.72 | 514 |
| 50 BR SCY | 44.82 | 535 |
| 50 FL SCY | 40.32 | 445 |
| 50 BK SCY | — | 0 |
| 100 IM 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 1:15.72
Front half 37.43s · back half 38.29s
200 Freestyle SCY 2:53.06
Front half 85.18s · back half 87.88s
500 Freestyle SCY 7:24.81
Front half 216.53s · back half 228.28s
100 Breaststroke SCY 1:37.95
Front half 47.58s · back half 50.37s
200 Individual Medley SCY 3:18.43
Front half 99.62s · back half 98.81s
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.