Derek Tien
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 24.67 | BB+0.28s to A·+1.48s to Sectionals | 2025-09-21 | 2025 TSM Aquatics Season Openervenue |
| 100 Freestyle | SCY | 53.47 | A+2.18s to AA·+2.48s to Sectionals | 2025-11-23 | 2025 CANY Cranberryvenue |
| 200 Freestyle | SCY | 1:56.20 | A+4.21s to AA·+4.41s to Sectionals | 2025-11-22 | 2025 CANY Cranberryvenue |
| 500 Freestyle | SCY | 5:12.21 | A+7.92s to AA·+9.52s to Sectionals | 2025-11-22 | 2025 CANY Cranberryvenue |
| 1000 Freestyle | SCY | 10:19.48 | AA+13.09s to AAA·Sectionals ✓+45.19s to Futures | 2025-11-02 | 2025 "Our Rising Tides" 16u SCY P/F Meetvenue |
| 1650 Freestyle | SCY | 17:04.31 | AA+13.42s to AAA·Sectionals ✓+58.82s to Futures | 2025-10-31 | 2025 "Our Rising Tides" 16u SCY P/F Meetvenue |
| 100 Backstroke | SCY | 1:00.35 | BB+2.26s to A·+4.86s to Sectionals | 2025-10-25 | TORR Spooky Splashvenue |
| 200 Backstroke | SCY | 2:10.83 | BB+3.54s to A·+9.54s to Sectionals | 2025-12-13 | 2025 CA SCS/SCAT WAGvenue |
| 50 Breaststroke | SCY | 28.49 | AAA+0.90s to AAAA·+2.20s to Futures | 2026-02-28 | 2026 SI CA/NV Speedo Sectionals Oceansidevenue |
| 100 Breaststroke | SCY | 1:00.30 | AAA+2.51s to AAAA·Sectionals ✓+2.31s to Futures | 2026-05-13 | 2026 Rose Post CIF Closed Invitation 5_12-13_venue |
| 200 Breaststroke | SCY | 2:13.29 | AA+2.00s to AAA·Sectionals ✓+5.30s to Futures | 2025-07-15 | Rose Post LAI Intrasquadvenue |
| 50 Butterfly | SCY | 26.24 | A+0.15s to AA·+3.35s to Futures | 2025-09-20 | Red vs Blackvenue |
| 100 Butterfly | SCY | 55.36 | A+0.07s to AA·+0.17s to Sectionals | 2025-11-01 | 2025 "Our Rising Tides" 16u SCY P/F Meetvenue |
| 200 Butterfly | SCY | 2:10.12 | BB+0.93s to A·+6.73s to Sectionals | 2025-11-23 | 2025 CANY Cranberryvenue |
| 100 Individual Medley | SCY | 1:20.58 | 2021-05-01 | 2021 UT Red Cliffs Swim Classicvenue | |
| 200 Individual Medley | SCY | 2:03.47 | AA+4.58s to AAA·Sectionals ✓+9.58s to Futures | 2025-12-12 | 2025 CA SCS/SCAT WAGvenue |
| 400 Individual Medley | SCY | 4:33.14 | A+7.05s to AA·+8.45s to Sectionals | 2025-09-21 | 2025 TSM Aquatics Season Openervenue |
| 1500 Freestyle | LCM | 18:50.85 | A+31.46s to AA·+39.76s to Sectionals | 2026-05-22 | 2026 CA 30th NOVA-Speedo Grand Challengevenue |
| 100 Backstroke | LCM | 1:07.33 | A+2.04s to AA·+2.14s to Sectionals | 2025-07-26 | 2025 CA SCS Summer A/G Champs |
| 200 Backstroke | LCM | 2:32.93 | BB+5.24s to A·+11.44s to Sectionals | 2025-06-28 | 2025 CA SBSC Semana Nautica LCM Meetvenue |
| 50 Breaststroke | LCM | 31.09 | AAAA·+0.20s to Futures | 2026-07-25 | 2026 CA SCS Summer A/G Champs @ BREAfast pool |
| 100 Breaststroke | LCM | 1:08.31 | AAA+0.92s to AAAA·Sectionals ✓+0.12s to Futures | 2026-07-24 | 2026 CA SCS Summer A/G Champs @ BREAfast pool |
| 200 Breaststroke | LCM | 2:39.89 | AA+6.40s to AAA·Sectionals ✓+10.80s to Futures | 2026-07-10 | 2026 LAI AT USCvenue |
| 50 Butterfly | LCM | 29.64 | A+0.15s to AA·+3.35s to Futures | 2025-04-05 | Rose Bowl Aquatics Red vs Black Intrasquadvenue |
| 100 Butterfly | LCM | 1:02.91 | AA+2.42s to AAA·Sectionals ✓+4.92s to Futures | 2025-07-25 | 2025 CA SCS Summer A/G Champs |
| 200 Butterfly | LCM | 2:40.41 | B+0.42s to BB·+19.32s to Sectionals | 2024-07-25 | 2024 CA SCS/ BREA Summer A/G Champsslow pool |
| 200 Individual Medley | LCM | 2:25.16 | A+0.17s to AA·+0.47s to Sectionals | 2025-06-13 | 2025 CA SCS RAA June Age Group Championshipsvenue |
| 400 Individual Medley | LCM | 5:11.35 | A+2.36s to AA·+3.56s to Sectionals | 2025-06-12 | 2025 CA SCS RAA June Age Group Championshipsvenue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 16.
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.
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 |
|---|---|---|---|---|---|---|
| 50 Freestyle | SCY | 23.94 | flying | 200 Free Relay (leg 3) | 2025-02-23 | 2025 Pacific Committee SC Championship |
| 100 Freestyle | SCY | 53.30 | flying | 400 Free Relay (leg 3) | 2025-02-22 | 2025 Pacific Committee SC Championship |
| 200 Freestyle | SCY | 1:59.63 | flying | 800 Free Relay (leg 2) | 2025-02-21 | 2025 Pacific Committee SC Championship |
| 50 Breaststroke | SCY | 29.53 | flying | 200 Medley Relay (leg 2) | 2025-02-22 | 2025 Pacific Committee SC Championship |
| 100 Breaststroke | SCY | 1:03.39 | flying | 400 Medley Relay (leg 2) | 2025-02-23 | 2025 Pacific Committee SC Championship |
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
4238 points (6/6 events)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 5:12.21 | 693 |
| 200 BK SCY | 2:10.83 | 605 |
| 200 BR SCY | 2:13.29 | 830 |
| 200 FL SCY | 2:10.12 | 649 |
| 200 IM SCY | 2:03.47 | 770 |
| 400 IM SCY | 4:33.14 | 691 |
IMR 15-16 · SCY
3667 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 1:56.20 | 676 |
| 100 BK SCY | 1:00.35 | 592 |
| 100 BR SCY | 1:00.30 | 875 |
| 100 FL SCY | 55.36 | 754 |
| 200 IM SCY | 2:03.47 | 770 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
200 Freestyle SCY 1:56.20
Front half 56.41s · back half 59.79s
500 Freestyle SCY 5:12.21
Front half 157.07s · back half 155.14s
1650 Freestyle SCY 17:04.31
100 Backstroke SCY 1:00.35
Front half 29.63s · back half 30.72s
200 Backstroke SCY 2:10.83
Front half 64.74s · back half 66.09s
100 Breaststroke SCY 1:00.30
Front half 28.65s · back half 31.65s
200 Breaststroke SCY 2:13.29
Front half 62.84s · back half 70.45s
100 Butterfly SCY 55.36
Front half 26.95s · back half 28.41s
100 Individual Medley SCY 1:20.58
Front half 37.96s · back half 42.62s
200 Individual Medley SCY 2:03.47
Front half 59.65s · back half 63.82s
400 Individual Medley SCY 4:33.14
Front half 133.34s · back half 139.80s
1500 Freestyle LCM 18:50.85
Front half 560.98s · back half 569.87s
200 Backstroke LCM 2:32.93
Front half 74.96s · back half 77.97s
200 Breaststroke LCM 2:39.89
Front half 75.30s · back half 84.59s
200 Butterfly LCM 2:40.41 RT 0.68s
Front half 74.57s · back half 85.84s
200 Individual Medley LCM 2:25.16
Front half 69.61s · back half 75.55s
400 Individual Medley LCM 5:11.35
Front half 156.27s · back half 155.08s
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.