swimDerek Feng
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 23.11 | AA+0.42s to AAA | 2025-10-18 | 2025 NE NSSC Beede Halloween Classic - copied venue |
| 100 Freestyle | SCY | 49.55 | AAA+2.06s to AAAA | 2025-10-17 | 2025 NE NSSC Beede Halloween Classic |
| 200 Freestyle | SCY | 1:46.09 | AAA+2.30s to AAAA | 2026-02-27 | 2026 NE CRIM 15-18 AG Championships venue |
| 500 Freestyle | SCY | 4:54.59 | AAA+12.30s to AAAA | 2026-01-02 | 2026 NE INST-ABF Blizzard Classic venue |
| 50 Backstroke | SCY | 25.71 | AA+0.02s to AAA | 2025-12-18 | 2026 NE NSSC Senior Championships |
| 100 Backstroke | SCY | 52.00 | AAAA | 2026-03-27 | 2026 Four Corner Speedo Sectionals - Carmel - fast pool |
| 200 Backstroke | SCY | 1:54.97 | AAA+1.08s to AAAA | 2026-03-28 | 2026 Four Corner Speedo Sectionals - Carmel - fast pool |
| 50 Breaststroke | SCY | 28.41 | AAA+0.32s to AAAA | 2025-12-18 | 2026 NE NSSC Senior Championships |
| 100 Breaststroke | SCY | 1:00.52 | AAA+1.53s to AAAA | 2025-12-18 | 2026 NE NSSC Senior Championships |
| 200 Breaststroke | SCY | 2:11.04 | AAA+2.45s to AAAA | 2026-03-26 | 2026 Four Corner Speedo Sectionals - Carmel - fast pool |
| 50 Butterfly | SCY | 25.88 | AA+0.49s to AAA | 2024-12-12 | 2024 NE SHAWMUT Candy Cane Classic venue |
| 100 Butterfly | SCY | 52.95 | AAA+1.46s to AAAA | 2026-02-27 | 2026 NE CRIM 15-18 AG Championships venue |
| 200 Butterfly | SCY | 2:09.07 | A+2.58s to AA | 2025-01-01 | 2025 ne cs kickoff classic results |
| 100 Individual Medley | SCY | 57.26 | 2025-01-01 | 2025 ne cs kickoff classic results | |
| 200 Individual Medley | SCY | 1:58.27 | AAA+2.58s to AAAA | 2026-03-29 | 2026 Four Corner Speedo Sectionals - Carmel - fast pool |
| 400 Individual Medley | SCY | 4:33.21 | A+0.82s to AA | 2024-11-15 | 2024 NE SAC Turkey Splash venue |
| 50 Freestyle | LCM | 26.35 | AA+0.16s to AAA | 2026-01-01 | Season Opener Hosted by Commonwealth Swimming Seekonk |
| 100 Freestyle | LCM | 58.76 | AA+1.67s to AAA | 2025-01-01 | 2025 ne sac america s cup results |
| 200 Freestyle | LCM | 2:03.68 | AAA+3.69s to AAAA | 2026-06-06 | 2026 NE SAC America's Cup - copied venue |
| 400 Freestyle | LCM | 4:42.83 | A+2.94s to AA | 2025-04-12 | 2025 NE YNS April IMX & IMR Challenge venue |
| 50 Backstroke | LCM | 29.73 | AAA+0.74s to AAAA | 2026-01-01 | 2026 ne cs spring fever results |
| 100 Backstroke | LCM | 1:01.94 | AAA+1.05s to AAAA | 2026-01-01 | Season Opener Hosted by Commonwealth Swimming Seekonk |
| 200 Backstroke | LCM | 2:19.93 | AA+1.44s to AAA | 2026-06-06 | 2026 NE SAC America's Cup - copied venue |
| 50 Breaststroke | LCM | 33.43 | AAA+1.44s to AAAA | 2025-01-01 | 2025 NE Swimming LC Senior Championships - Brown University, S#: NE25-0710CS venue |
| 100 Breaststroke | LCM | 1:13.84 | AA+2.05s to AAA | 2025-01-01 | 2025 ne sac america s cup results |
| 200 Breaststroke | LCM | 2:40.37 | AA+3.28s to AAA | 2025-07-10 | 2025 NE CS LCM Senior Championships venue |
| 50 Butterfly | LCM | 27.09 | AAAA | 2026-06-07 | 2026 NE SAC America's Cup - copied venue |
| 100 Butterfly | LCM | 1:03.23 | AA+1.54s to AAA | 2026-06-06 | 2026 NE SAC America's Cup - copied venue |
| 200 Butterfly | LCM | 2:52.93 | B+9.84s to BB | 2024-06-02 | 2024 NE BGSC May Summer Fiesta venue |
| 200 Individual Medley | LCM | 2:20.99 | AA+0.50s to AAA | 2026-01-01 | 2026 ne cs spring fever results |
| 400 Individual Medley | LCM | 5:16.61 | A+1.02s to AA | 2025-05-16 | 2025 NE SAC May Madness venue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 15.
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 |
|---|---|---|---|---|---|---|
| 100 Freestyle | SCY | 50.94 | flat | 400 Free Relay | 2025-02-23 | 2025 NE CRA 11-14 SCY Age Group Championship |
| 200 Freestyle | SCY | 1:43.45 | flying | 800 Free Relay (leg 2) | 2026-02-26 | 2026 NE CRIM 15-18 AG 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
IMX 15-16 · SCY
4822 points (6/6 events)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 4:54.59 | 824 |
| 200 BK SCY | 1:54.97 | 892 |
| 200 BR SCY | 2:11.04 | 874 |
| 200 FL SCY | 2:09.07 | 665 |
| 200 IM SCY | 1:58.27 | 876 |
| 400 IM SCY | 4:33.21 | 691 |
IMR 15-16 · SCY
4417 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 1:46.09 | 888 |
| 100 BK SCY | 52.00 | 926 |
| 100 BR SCY | 1:00.52 | 866 |
| 100 FL SCY | 52.95 | 861 |
| 200 IM SCY | 1:58.27 | 876 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 49.55 split/total mismatch
Front half 24.01s · back half 25.54s
200 Freestyle SCY 1:46.09
Front half 51.77s · back half 54.32s
500 Freestyle SCY 4:54.59
Front half 145.52s · back half 149.07s
100 Backstroke SCY 52.00
Front half 25.44s · back half 26.56s
200 Backstroke SCY 1:54.97
Front half 56.46s · back half 58.51s
100 Breaststroke SCY 1:00.52 split/total mismatch
Front half 28.47s · back half 32.05s
200 Breaststroke SCY 2:11.04
Front half 61.83s · back half 69.21s
100 Butterfly SCY 52.95
Front half 24.61s · back half 28.34s
200 Butterfly SCY 2:09.07 split/total mismatch
Front half 32.93s · back half 96.14s
100 Individual Medley SCY 57.26 split/total mismatch
Front half 26.71s · back half 30.55s
200 Individual Medley SCY 1:58.27
Front half 54.62s · back half 63.65s
400 Individual Medley SCY 4:33.21
Front half 131.60s · back half 141.61s
200 Freestyle LCM 2:03.68
Front half 61.49s · back half 62.19s
400 Freestyle LCM 4:42.83
Front half 137.98s · back half 144.85s
100 Backstroke LCM 1:01.94 split/total mismatch
Front half 30.55s · back half 31.39s
200 Backstroke LCM 2:19.93
Front half 68.47s · back half 71.46s
200 Breaststroke LCM 2:40.37
Front half 75.56s · back half 84.81s
200 Butterfly LCM 2:52.93
Front half 77.02s · back half 95.91s
200 Individual Medley LCM 2:20.99 split/total mismatch
400 Individual Medley LCM 5:16.61
Front half 150.63s · back half 165.98s
Progression
Faster times are higher. One card per event, all courses & history.