Derek Zhu
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 25 Freestyle | SCY | 18.66 | 2024-11-03 | 2024 PN C Pentathlon venue | |
| 50 Freestyle | SCY | 33.12 | 2025-03-29 | 2025 PN Spring Finale, Division 1 | |
| 25 Backstroke | SCY | 22.79 | 2024-11-03 | 2024 PN C Pentathlon venue | |
| 50 Backstroke | SCY | 40.52 | 2026-03-08 | 2026 PN C March Madness -Approved venue | |
| 100 Backstroke | SCY | 1:50.82 | 2024-10-20 | 2024 PN IST Fall Open venue | |
| 25 Breaststroke | SCY | 28.67 | 2024-10-06 | 2024 PN UPAC Fall Open venue | |
| 50 Breaststroke | SCY | 53.61 | 2025-11-09 | 2025 PN C Pentathlon venue | |
| 100 Breaststroke | SCY | 1:47.60 | 2026-03-08 | 2026 PN C March Madness -Approved venue | |
| 25 Butterfly | SCY | 24.73 | 2024-11-03 | 2024 PN C Pentathlon venue | |
| 50 Butterfly | SCY | 48.11 | 2025-11-09 | 2025 PN C Pentathlon venue | |
| 100 Individual Medley | SCY | 1:37.87 | 2025-11-22 | 2025 PN November AGI Div 1 (PDST) venue |
Fastest relay legs
| Leg | Course | Time | Start | Relay | Date | Meet |
|---|---|---|---|---|---|---|
| 50 Freestyle | SCY | 35.28 | flying | 200 Medley Relay (leg 4) | 2025-12-13 | 2025 PN 14&Under Short Course Champs-Approved |
| 50 Freestyle | SCY | 40.25 | flying | 200 Free Relay (leg 4) | 2025-01-19 | 2025 PN BC 26th Annual Snowflake Classic |
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 · SCY
1437 points (4/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 50 BK SCY | 40.52 | 501 |
| 50 BR SCY | 53.61 | 312 |
| 50 FL SCY | 48.11 | 262 |
| 100 IM SCY | 1:37.87 | 362 |
| 100 FR SCY | — | 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
Progression
Faster times are higher. One card per event, all courses & history.