swimJuan Castillo
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 23.57 | A+0.48s to AA | 2025-07-20 | 2025 ISI Summer HPAC Regional venue |
| 50 Butterfly | SCY | 27.13 | BB+0.44s to A | 2025-07-20 | 2025 ISI Summer HPAC Regional venue |
| 100 Butterfly | SCY | 58.66 | BB+1.97s to A | 2025-07-19 | 2025 ISI Summer HPAC Regional venue |
| 50 Freestyle | LCM | 26.93 | A+0.24s to AA | 2025-07-31 | 2025 LC Illinois Senior Championships |
| 100 Butterfly | LCM | 1:06.68 | BB+1.49s to A | 2025-07-31 | 2025 LC Illinois Senior Championships |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 17.
Fastest relay legs
| Leg | Course | Time | Start | Relay | Date | Meet |
|---|---|---|---|---|---|---|
| 50 Freestyle | SCY | 23.21 | flying | 200 Free Relay (leg 3) | 2025-07-20 | 2025 ISI Summer HPAC Regional |
| 50 Freestyle | LCM | 26.24 | flying | 200 Free Relay (leg 3) | 2025-08-02 | 2025 LC Illinois Senior Championships |
| 100 Freestyle | LCM | 58.29 | flying | 400 Free Relay (leg 2) | 2025-08-03 | 2025 LC Illinois Senior 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
IMR 17-18 · LCM
592 points (1/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 100 FL LCM | 1:06.68 | 592 |
| 200 FR LCM | — | 0 |
| 100 BK LCM | — | 0 |
| 100 BR LCM | — | 0 |
| 200 IM LCM | — | 0 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Butterfly SCY 58.66
Front half 27.34s · back half 31.32s
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.
Progression
Faster times are higher. One card per event, all courses & history.