swimKosei Okano
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 24.43 | AA+0.94s to AAA | 2026-03-21 | 2026 SCY MAGS Championship Meet fast pool |
| 100 Freestyle | SCY | 52.85 | AA+1.66s to AAA | 2026-03-08 | 2026 Lake Erie Regional Meet venue |
| 200 Freestyle | SCY | 1:57.55 | A+0.46s to AA | 2026-03-07 | 2026 Lake Erie Regional Meet venue |
| 500 Freestyle | SCY | 5:46.50 | BB+15.71s to A | 2025-01-17 | 2025 USSC Odd Age Invite venue |
| 50 Backstroke | SCY | 30.23 | BB+1.34s to A | 2025-12-21 | Life Time Michigan Candy Cane Classic venue |
| 100 Backstroke | SCY | 1:07.01 | B+0.72s to BB | 2024-12-15 | SLA Holiday Blast venue |
| 50 Breaststroke | SCY | 31.07 | AA+0.78s to AAA | 2026-03-08 | 2026 Lake Erie Regional Meet venue |
| 100 Breaststroke | SCY | 1:09.72 | BB+0.63s to A | 2026-03-20 | 2026 SCY MAGS Championship Meet fast pool |
| 200 Breaststroke | SCY | 2:45.80 | B+3.01s to BB | 2024-10-20 | 2024 OLY Fall Classic venue |
| 50 Butterfly | SCY | 30.15 | BB+1.76s to A | 2025-01-18 | 2025 USSC Odd Age Invite venue |
| 100 Individual Medley | SCY | 1:06.56 | 2025-12-20 | Life Time Michigan Candy Cane Classic venue | |
| 200 Individual Medley | SCY | 2:11.06 | A+1.27s to AA | 2026-03-20 | 2026 SCY MAGS Championship Meet fast pool |
| 50 Freestyle | LCM | 28.20 | A+0.01s to AA | 2026-06-21 | DRD Freeze or Fry 2026 venue |
| 100 Freestyle | LCM | 1:02.90 | A+1.21s to AA | 2026-06-19 | DRD Freeze or Fry 2026 venue |
| 200 Freestyle | LCM | 2:18.95 | A+4.26s to AA | 2026-06-20 | DRD Freeze or Fry 2026 venue |
| 50 Backstroke | LCM | 32.54 | A+0.05s to AA | 2026-05-30 | 2026 PCC Cruisin into Summer venue |
| 100 Backstroke | LCM | 1:16.25 | BB+4.56s to A | 2026-06-20 | DRD Freeze or Fry 2026 venue |
| 50 Breaststroke | LCM | 37.81 | BB+0.02s to A | 2026-06-20 | DRD Freeze or Fry 2026 venue |
| 100 Breaststroke | LCM | 1:24.97 | BB+4.38s to A | 2026-06-21 | DRD Freeze or Fry 2026 venue |
| 200 Breaststroke | LCM | 3:11.71 | B+2.32s to BB | 2024-07-20 | 2024 MAGS Long Course Championship Meet venue |
| 50 Butterfly | LCM | 31.56 | A+0.97s to AA | 2026-05-31 | 2026 PCC Cruisin into Summer venue |
| 200 Individual Medley | LCM | 2:38.99 | BB+2.10s to A | 2026-06-19 | DRD Freeze or Fry 2026 venue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 14.
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 | 25.94 | flat | 200 Free Relay | 2025-02-22 | 2025 Lake Ontario Regional Meet |
| 50 Freestyle | SCY | 24.15 | flying | 200 Medley Relay (leg 4) | 2026-03-20 | 2026 SCY MAGS Championship Meet |
| 50 Freestyle | SCY | 24.02 | flying | 200 Free Relay (leg 2) | 2026-03-22 | 2026 SCY MAGS Championship Meet |
| 100 Freestyle | SCY | 53.09 | flying | 400 Free Relay (leg 2) | 2026-03-20 | 2026 SCY MAGS Championship Meet |
| 100 Freestyle | SCY | 52.81 | flying | 400 Medley Relay (leg 4) | 2026-03-21 | 2026 SCY MAGS Championship Meet |
| 50 Breaststroke | SCY | 34.61 | flying | 200 Medley Relay (leg 2) | 2025-02-23 | 2025 Lake Ontario Regional Meet |
| 100 Freestyle | LCM | 1:04.73 | flying | 400 Free Relay (leg 4) | 2024-07-19 | 2024 MAGS Long Course Championship Meet |
| 100 Breaststroke | LCM | 1:27.19 | flying | 400 Medley Relay (leg 2) | 2024-07-20 | 2024 MAGS Long Course Championship Meet |
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 13-14 · SCY
1814 points (3/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 5:46.50 | 581 |
| 200 BR SCY | 2:45.80 | 495 |
| 200 IM SCY | 2:11.06 | 738 |
| 200 BK SCY | — | 0 |
| 200 FL SCY | — | 0 |
| 400 IM SCY | — | 0 |
IMR 13-14 · SCY
2646 points (4/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 1:57.55 | 751 |
| 100 BK SCY | 1:07.01 | 508 |
| 100 BR SCY | 1:09.72 | 649 |
| 200 IM SCY | 2:11.06 | 738 |
| 100 FL 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 52.85
Front half 25.15s · back half 27.70s
200 Freestyle SCY 1:57.55
Front half 57.67s · back half 59.88s
500 Freestyle SCY 5:46.50
Front half 167.04s · back half 179.46s
100 Backstroke SCY 1:07.01
Front half 32.27s · back half 34.74s
100 Breaststroke SCY 1:09.72
Front half 33.29s · back half 36.43s
200 Breaststroke SCY 2:45.80
Front half 78.27s · back half 87.53s
100 Individual Medley SCY 1:06.56
Front half 30.92s · back half 35.64s
200 Individual Medley SCY 2:11.06
Front half 60.72s · back half 70.34s
200 Freestyle LCM 2:18.95
Front half 66.82s · back half 72.13s
200 Breaststroke LCM 3:11.71
Front half 91.97s · back half 99.74s
200 Individual Medley LCM 2:38.99
Front half 71.38s · back half 87.61s
Progression
Faster times are higher. One card per event, all courses & history.