swimDerek Zhu
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 25 Freestyle | SCY | 18.66 | 2024-11-03 | 2024 PN C Pentathlonvenue | |
| 50 Freestyle | SCY | 33.12 | BB+1.93s to A·+9.93s to Sectionals | 2025-03-29 | 2025 PN Spring Finale, Division 1 |
| 25 Backstroke | SCY | 22.79 | 2024-11-03 | 2024 PN C Pentathlonvenue | |
| 50 Backstroke | SCY | 40.52 | BB+2.73s to A·+16.83s to Futures | 2026-03-08 | 2026 PN C March Madness -Approvedvenue |
| 100 Backstroke | SCY | 1:50.82 | +9.73s to B·+55.33s to Sectionals | 2024-10-20 | 2024 PN IST Fall Openvenue |
| 25 Breaststroke | SCY | 28.67 | 2024-10-06 | 2024 PN UPAC Fall Openvenue | |
| 50 Breaststroke | SCY | 53.61 | +0.12s to B·+27.32s to Futures | 2025-11-09 | 2025 PN C Pentathlonvenue |
| 100 Breaststroke | SCY | 1:47.60 | B+4.01s to BB·+44.41s to Sectionals | 2026-03-08 | 2026 PN C March Madness -Approvedvenue |
| 25 Butterfly | SCY | 24.73 | 2024-11-03 | 2024 PN C Pentathlonvenue | |
| 50 Butterfly | SCY | 48.11 | +1.62s to B·+25.22s to Futures | 2025-11-09 | 2025 PN C Pentathlonvenue |
| 100 Individual Medley | SCY | 1:37.87 | B+8.08s to BB | 2025-11-22 | 2025 PN November AGI Div 1 (PDST)venue |
| 50 Freestyle | LCM | 36.95 | BB+1.26s to A·+9.96s to Sectionals | 2026-07-24 | 2026 PN LC 12&U Championships-Approvedvenue |
| 100 Freestyle | LCM | 1:30.03 | BB+9.84s to A·+31.04s to Sectionals | 2026-07-10 | 2026 PN Chinook Seattle Age Group Open- Approvenue |
| 50 Backstroke | LCM | 43.93 | BB+0.84s to A·+16.04s to Futures | 2026-07-23 | 2026 PN LC 12&U Championships-Approvedvenue |
| 100 Backstroke | LCM | 1:38.25 | BB+5.96s to A·+33.06s to Sectionals | 2026-07-10 | 2026 PN Chinook Seattle Age Group Open- Approvenue |
| 50 Breaststroke | LCM | 54.71 | B+0.32s to BB·+23.82s to Futures | 2026-07-10 | 2026 PN Chinook Seattle Age Group Open- Approvenue |
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.
Fastest relay legs
| Leg | Course | Time | Start | Relay | Date | Meet |
|---|---|---|---|---|---|---|
| 50 Freestyle | SCY | 29.33 | flying | 200 Medley Relay (leg 4) | 2025-11-22 | 2025 PN November AGI Div 1 (PDST) |
| 50 Freestyle | SCY | 35.24 | flying | 200 Free Relay (leg 4) | 2025-11-23 | 2025 PN November AGI Div 1 (PDST) |
| 50 Freestyle | LCM | 38.08 | flying | 200 Free Relay (leg 2) | 2026-07-25 | 2026 PN LC 12&U Championships-Approved |
| 50 Freestyle | LCM | 36.00 | flying | 200 Medley Relay (leg 4) | 2026-07-25 | 2026 PN LC 12&U Championships-Approved |
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
633 points (2/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 100 BK SCY | 1:50.82 | 241 |
| 100 BR SCY | 1:47.60 | 392 |
| 200 FR SCY | — | 0 |
| 100 FL SCY | — | 0 |
| 200 IM SCY | — | 0 |
IMR 10 & under · LCM
1497 points (3/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 100 FR LCM | 1:30.03 | 465 |
| 50 BK LCM | 43.93 | 596 |
| 50 BR LCM | 54.71 | 436 |
| 50 FL 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 Backstroke SCY 1:50.82
Front half 54.41s · back half 56.41s
100 Breaststroke SCY 1:47.60
Front half 50.07s · back half 57.53s
100 Individual Medley SCY 1:37.87
Front half 49.67s · back half 48.20s
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.