swimDerek Cheng
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 21.20 | AAA+0.11s to AAAA·Futures ✓+0.71s to Winter JNs | 2024-03-23 | 2024 EZ North Region Speedo Sectional Champsvenue |
| 100 Freestyle | SCY | 46.02 | AAAA·Futures ✓+1.13s to Winter JNs | 2024-03-24 | 2024 EZ North Region Speedo Sectional Champsvenue |
| 200 Freestyle | SCY | 1:40.38 | AAAA·Futures ✓+1.99s to Winter JNs | 2024-03-22 | 2024 EZ North Region Speedo Sectional Champsvenue |
| 500 Freestyle | SCY | 4:45.01 | AAA+9.52s to AAAA·Sectionals ✓+7.92s to Futures | 2024-03-23 | 2024 EZ North Region Speedo Sectional Champsvenue |
| 100 Backstroke | SCY | 51.97 | AAA+1.88s to AAAA·Sectionals ✓+0.48s to Futures | 2024-03-23 | 2024 EZ North Region Speedo Sectional Champsvenue |
| 200 Backstroke | SCY | 1:52.50 | AAA+2.91s to AAAA·Futures ✓+4.71s to Winter JNs | 2024-03-24 | 2024 EZ North Region Speedo Sectional Champsvenue |
| 100 Breaststroke | SCY | 1:05.55 | BB+0.86s to A·+4.06s to Sectionals | 2019-10-26 | 2019 MR SSC Fall Face Off |
| 100 Butterfly | SCY | 51.33 | AAA+1.74s to AAAA·Sectionals ✓+0.74s to Futures | 2024-03-22 | 2024 EZ North Region Speedo Sectional Champsvenue |
| 200 Individual Medley | SCY | 2:05.99 | A+3.10s to AA·+6.60s to Sectionals | 2019-01-01 | Metropolitan Swimming Club |
| 400 Individual Medley | SCY | 4:26.64 | A+2.15s to AA·+11.55s to Sectionals | 2019-01-01 | Metropolitan Swimming Club |
| 50 Freestyle | LCM | 27.81 | BB+0.02s to A·+2.32s to Sectionals | 2019-05-17 | 2019 mr pac spring starter invitational res |
| 100 Freestyle | LCM | 1:01.18 | BB+0.59s to A·+5.69s to Sectionals | 2019-05-17 | 2019 mr pac spring starter invitational res |
| 200 Freestyle | LCM | 2:00.79 | AAA+4.20s to AAAA·Sectionals ✓+3.00s to Futures | 2022-05-13 | 2022 MR PAC Spring Starter Invitational |
| 400 Freestyle | LCM | 4:37.15 | A+4.76s to AA·+19.56s to Sectionals | 2019-05-17 | 2019 mr pac spring starter invitational res |
| 50 Backstroke | LCM | 32.14 | BB+0.15s to A·+4.25s to Futures | 2019-05-17 | 2019 mr pac spring starter invitational res |
| 100 Backstroke | LCM | 1:09.56 | BB+2.07s to A·+7.57s to Sectionals | 2019-06-14 | 2019 mr nysa summer sizzler invitational res |
| 200 Backstroke | LCM | 2:29.59 | BB+2.50s to A·+14.80s to Sectionals | 2019-06-14 | 2019 mr nysa summer sizzler invitational res |
| 50 Breaststroke | LCM | 36.50 | BB+1.51s to A·+5.61s to Futures | 2019-05-17 | 2019 mr pac spring starter invitational res |
| 100 Breaststroke | LCM | 1:18.30 | BB+2.81s to A·+8.61s to Sectionals | 2019-06-14 | 2019 mr nysa summer sizzler invitational res |
| 50 Butterfly | LCM | 31.27 | BB+1.08s to A·+4.98s to Futures | 2019-05-17 | 2019 mr pac spring starter invitational res |
| 100 Butterfly | LCM | 1:09.92 | BB+4.73s to A·+9.73s to Sectionals | 2019-05-17 | 2019 mr pac spring starter invitational res |
| 200 Butterfly | LCM | 2:34.41 | BB+9.02s to A·+18.12s to Sectionals | 2019-06-14 | 2019 mr nysa summer sizzler invitational res |
| 200 Individual Medley | LCM | 2:17.42 | AA+1.23s to AAA·+1.23s to Sectionals | 2022-05-13 | 2022 MR PAC Spring Starter Invitational |
| 400 Individual Medley | LCM | 5:10.29 | A+4.60s to AA·+20.40s to Sectionals | 2019-06-14 | 2019 mr nysa summer sizzler invitational res |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 17.
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 | 21.49 | flat | 200 Free Relay | 2024-03-24 | 2024 EZ North Region Speedo Sectional Champs |
| 50 Freestyle | SCY | 20.67 | flying | 200 Medley Relay (leg 4) | 2024-03-23 | 2024 EZ North Region Speedo Sectional Champs |
| 100 Freestyle | SCY | 46.18 | flat | 400 Free Relay | 2024-03-23 | 2024 EZ North Region Speedo Sectional Champs |
| 100 Freestyle | SCY | 45.80 | flying | 400 Medley Relay (leg 4) | 2024-03-24 | 2024 EZ North Region Speedo Sectional Champs |
| 200 Freestyle | SCY | 1:40.24 | flying | 800 Free Relay (leg 3) | 2024-03-22 | 2024 EZ North Region Speedo Sectional Champs |
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 17-18 · LCM
3361 points (5/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 400 FR LCM | 4:37.15 | 689 |
| 200 BK LCM | 2:29.59 | 610 |
| 200 FL LCM | 2:34.41 | 534 |
| 200 IM LCM | 2:17.42 | 827 |
| 400 IM LCM | 5:10.29 | 701 |
| 200 BR LCM | — | 0 |
IMR 17-18 · SCY
3999 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 1:40.38 | 994 |
| 100 BK SCY | 51.97 | 832 |
| 100 BR SCY | 1:05.55 | 623 |
| 100 FL SCY | 51.33 | 874 |
| 200 IM SCY | 2:05.99 | 676 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 46.02
Front half 22.02s · back half 24.00s
200 Freestyle SCY 1:40.38
Front half 49.16s · back half 51.22s
500 Freestyle SCY 4:45.01
Front half 137.86s · back half 147.15s
100 Backstroke SCY 51.97
Front half 25.48s · back half 26.49s
200 Backstroke SCY 1:52.50
Front half 55.60s · back half 56.90s
100 Butterfly SCY 51.33
Front half 24.27s · back half 27.06s
200 Freestyle LCM 2:00.79
200 Individual Medley LCM 2:17.42 split/total mismatch
Front half 77.67s · back half 59.75s
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.