swimKozue Shiraishi
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 28.77 | AA+0.68s to AAA | 2026-03-14 | 2026 OH SC Junior Championships fast pool |
| 100 Freestyle | SCY | 1:04.08 | A+0.29s to AA | 2026-03-13 | 2026 OH SC Junior Championships fast pool |
| 200 Freestyle | SCY | 2:52.28 | +3.19s to B | 2025-02-16 | 2025 OH BSC SC Regional Championships slow pool |
| 50 Breaststroke | SCY | 45.20 | B+2.91s to BB | 2025-02-15 | 2025 OH BSC SC Regional Championships slow pool |
| 100 Breaststroke | SCY | 1:33.24 | B+0.35s to BB | 2025-03-08 | 2025 OH SC Junior Championships venue |
| 50 Butterfly | SCY | 32.79 | A+0.80s to AA | 2026-02-21 | 2026 OH BSC SC Regional Championships fast pool |
| 100 Butterfly | SCY | 1:15.08 | A+2.49s to AA | 2026-02-22 | 2026 OH BSC SC Regional Championships fast pool |
| 100 Individual Medley | SCY | 1:11.99 | AA+2.30s to AAA | 2026-03-15 | 2026 OH SC Junior Championships fast pool |
| 200 Individual Medley | SCY | 2:39.55 | A+1.16s to AA | 2026-02-19 | 2026 OH BSC SC Regional Championships fast pool |
| 50 Freestyle | LCM | 34.51 | A+1.12s to AA | 2025-07-20 | 2025 OH LC Junior Championships venue |
| 100 Freestyle | LCM | 1:17.43 | BB+0.94s to A | 2025-07-18 | 2025 OH LC Junior Championships venue |
| 50 Backstroke | LCM | 43.08 | BB+2.99s to A | 2025-07-19 | 2025 OH LC Junior Championships venue |
| 100 Breaststroke | LCM | 1:52.45 | B+5.16s to BB | 2025-07-19 | 2025 OH LC Junior Championships venue |
| 50 Butterfly | LCM | 37.21 | A+1.32s to AA | 2025-07-18 | 2025 OH LC Junior Championships venue |
| 100 Butterfly | LCM | 1:32.71 | BB+5.82s to A | 2025-07-20 | 2025 OH LC Junior Championships venue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 11.
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 | 32.49 | flying | 200 Free Relay (leg 2) | 2025-03-08 | 2025 OH SC Junior Championships |
| 50 Butterfly | SCY | 35.00 | flying | 200 Medley Relay (leg 3) | 2025-03-09 | 2025 OH SC Junior Championships |
| 50 Freestyle | LCM | 30.80 | flying | 200 Medley Relay (leg 4) | 2025-07-20 | 2025 OH LC Junior Championships |
| 50 Freestyle | LCM | 41.69 | flying | 200 Free Relay (leg 2) | 2025-07-19 | 2025 OH LC Junior 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 11-12 · SCY
1652 points (3/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 100 BR SCY | 1:33.24 | 450 |
| 100 FL SCY | 1:15.08 | 557 |
| 200 IM SCY | 2:39.55 | 645 |
| 500 FR SCY | — | 0 |
| 100 BK SCY | — | 0 |
IMR 11-12 · SCY
2043 points (4/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 2:52.28 | 354 |
| 50 BR SCY | 45.20 | 388 |
| 50 FL SCY | 32.79 | 602 |
| 100 IM SCY | 1:11.99 | 699 |
| 50 BK 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 1:04.08
Front half 30.47s · back half 33.61s
200 Freestyle SCY 2:52.28
Front half 86.06s · back half 86.22s
100 Breaststroke SCY 1:33.24
Front half 44.76s · back half 48.48s
100 Butterfly SCY 1:15.08
Front half 36.25s · back half 38.83s
100 Individual Medley SCY 1:11.99
Front half 34.24s · back half 37.75s
200 Individual Medley SCY 2:39.55
Front half 77.82s · back half 81.73s
100 Freestyle LCM 1:17.43
Front half 36.56s · back half 40.87s
100 Breaststroke LCM 1:52.45
Front half 53.51s · back half 58.94s
100 Butterfly LCM 1:32.71
Front half 40.98s · back half 51.73s
Progression
Faster times are higher. One card per event, all courses & history.