swimSora Koike
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 23.06 | AAAA·Winter JNs ✓+0.07s to Jr Nationals | 2024-12-21 | 2024 CA-NV December Sectionals At BREAvenue |
| 100 Freestyle | SCY | 50.30 | AAAA·Winter JNs ✓+0.31s to Jr Nationals | 2025-11-09 | 2025 Legends of Coaching Series_Peter Dalandvenue |
| 200 Freestyle | SCY | 1:47.83 | AAAA·Jr Nationals ✓+0.64s to Nationals | 2026-02-27 | 2026 SI CA/NV Speedo Sectionals Oceansidevenue |
| 500 Freestyle | SCY | 4:52.51 | AAAA·Winter JNs ✓+2.52s to Jr Nationals | 2025-11-07 | 2025 Legends of Coaching Series_Peter Dalandvenue |
| 1000 Freestyle | SCY | 10:33.01 | AAA+7.22s to AAAA·Sectionals ✓+12.52s to Futures | 2026-02-01 | BCA Winter Heatsvenue |
| 50 Backstroke | SCY | 27.84 | AA+0.45s to AAA·+1.55s to Futures | 2025-09-20 | 2025 TSM Aquatics Season Openervenue |
| 50 Breaststroke | SCY | 34.13 | A+0.64s to AA·+4.34s to Futures | 2025-09-14 | BCA Fall Intersquadvenue |
| 50 Butterfly | SCY | 25.74 | AAAA·+0.05s to Futures | 2026-02-15 | 2026 MVN Lunar AAPI Festivalvenue |
| 100 Butterfly | SCY | 55.71 | AAA+0.32s to AAAA·Futures ✓+1.02s to Winter JNs | 2025-11-08 | 2025 Legends of Coaching Series_Peter Dalandvenue |
| 100 Individual Medley | SCY | 1:01.53 | 2025-09-14 | BCA Fall Intersquadvenue | |
| 200 Individual Medley | SCY | 2:09.09 | AAA+4.50s to AAAA·Sectionals ✓+2.70s to Futures | 2026-02-14 | 2026 MVN Lunar AAPI Festivalvenue |
| 50 Freestyle | LCM | 25.99 | AAAA·Nationals ✓ | 2026-01-01 | 2026 Speedo Junior National Championships |
| 100 Freestyle | LCM | 57.99 | AAAA·Winter JNs ✓+0.30s to Jr Nationals | 2026-08-04 | 2026 Speedo Junior National Championshipsvenue |
| 200 Freestyle | LCM | 2:05.50 | AAAA·Futures ✓+0.51s to Jr Nationals | 2026-08-06 | 2026 Speedo Junior National Championshipsvenue |
| 400 Freestyle | LCM | 4:30.19 | AAA+2.40s to AAAA·Sectionals ✓+1.40s to Futures | 2025-08-01 | 2025 Speedo Junior National Championshipsfast pool |
| 50 Butterfly | LCM | 29.99 | AAA+0.90s to AAAA·+0.50s to Futures | 2026-06-20 | 2026 CA MVN Fran Crippen SMOCvenue |
| 100 Butterfly | LCM | 1:06.01 | AAA+2.92s to AAAA·Sectionals ✓+1.32s to Futures | 2026-06-21 | 2026 CA MVN Fran Crippen SMOCvenue |
| 200 Individual Medley | LCM | 2:33.92 | AA+4.43s to AAA·Sectionals ✓+7.73s to Futures | 2024-03-03 | 2024 CA/NV Speedo Sectionalvenue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 18.
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 | 24.21 | flat | 200 Free Relay | 2026-02-26 | 2026 SI CA/NV Speedo Sectionals Oceanside |
| 50 Freestyle | SCY | 22.71 | flying | 200 Free Relay (leg 3) | 2025-12-12 | 2025 West Speedo Winter Juniors |
| 50 Freestyle | SCY | 22.58 | flying | 200 Medley Relay (leg 4) | 2026-02-28 | 2026 SI CA/NV Speedo Sectionals Oceanside |
| 100 Freestyle | SCY | 49.58 | flying | 400 Medley Relay (leg 4) | 2026-02-27 | 2026 SI CA/NV Speedo Sectionals Oceanside |
| 100 Freestyle | SCY | 50.14 | flying | 400 Free Relay (leg 3) | 2026-03-01 | 2026 SI CA/NV Speedo Sectionals Oceanside |
| 200 Freestyle | SCY | 1:48.65 | flying | 800 Free Relay (leg 4) | 2024-12-19 | 2024 CA-NV December Sectionals At BREA |
| 50 Freestyle | LCM | 25.81 | flying | 200 Free Relay (leg 3) | 2026-08-03 | 2026 Speedo Junior National Championships |
| 50 Freestyle | LCM | 25.96 | flying | 200 Medley Relay (leg 4) | 2026-08-05 | 2026 Speedo Junior National Championships |
| 100 Freestyle | LCM | 57.17 | flying | 400 Medley Relay (leg 4) | 2026-08-07 | 2026 Speedo Junior National Championships |
| 100 Freestyle | LCM | 57.43 | flying | 400 Free Relay (leg 3) | 2026-08-06 | 2026 Speedo Junior National Championships |
| 200 Freestyle | LCM | 2:07.58 | flying | 800 Free Relay (leg 4) | 2024-02-29 | 2024 CA/NV Speedo Sectional |
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 17-18 · SCY
1908 points (2/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 4:52.51 | 1050 |
| 200 IM SCY | 2:09.09 | 858 |
| 200 BK SCY | — | 0 |
| 200 BR SCY | — | 0 |
| 200 FL SCY | — | 0 |
| 400 IM SCY | — | 0 |
IMR 17-18 · SCY
2902 points (3/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 1:47.83 | 1072 |
| 100 FL SCY | 55.71 | 972 |
| 200 IM SCY | 2:09.09 | 858 |
| 100 BK SCY | — | 0 |
| 100 BR 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 50.30
Front half 23.95s · back half 26.35s
200 Freestyle SCY 1:47.83
Front half 53.06s · back half 54.77s
500 Freestyle SCY 4:52.51
Front half 144.91s · back half 147.60s
1000 Freestyle SCY 10:33.01
Front half 316.26s · back half 316.75s
100 Butterfly SCY 55.71
Front half 26.60s · back half 29.11s
100 Individual Medley SCY 1:01.53
Front half 27.88s · back half 33.65s
200 Individual Medley SCY 2:09.09
Front half 60.32s · back half 68.77s
100 Freestyle LCM 57.99 RT 0.62s
Front half 28.05s · back half 29.94s
200 Freestyle LCM 2:05.50 RT 0.64s
Front half 60.98s · back half 64.52s
400 Freestyle LCM 4:30.19 RT 0.59s
Front half 131.45s · back half 138.74s
100 Butterfly LCM 1:06.01
Front half 30.87s · back half 35.14s
200 Individual Medley LCM 2:33.92
Front half 71.56s · back half 82.36s
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.