Derek Tien
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 24.67 | BB+0.28s to A | 2025-09-21 | 2025 TSM Aquatics Season Opener venue |
| 100 Freestyle | SCY | 53.47 | A+2.18s to AA | 2025-11-23 | 2025 CANY Cranberry venue |
| 200 Freestyle | SCY | 1:56.20 | A+4.21s to AA | 2025-11-22 | 2025 CANY Cranberry venue |
| 500 Freestyle | SCY | 5:12.21 | A+7.92s to AA | 2025-11-22 | 2025 CANY Cranberry venue |
| 1000 Freestyle | SCY | 10:19.48 | AA+13.09s to AAA | 2025-11-02 | 2025 "Our Rising Tides" 16u SCY P/F Meet venue |
| 1650 Freestyle | SCY | 17:04.31 | AA+13.42s to AAA | 2025-10-31 | 2025 "Our Rising Tides" 16u SCY P/F Meet venue |
| 100 Backstroke | SCY | 1:00.35 | BB+2.26s to A | 2025-10-25 | TORR Spooky Splash venue |
| 200 Backstroke | SCY | 2:10.83 | BB+3.54s to A | 2025-12-13 | 2025 CA SCS/SCAT WAG venue |
| 50 Breaststroke | SCY | 28.49 | AAA+0.90s to AAAA | 2026-02-28 | 2026 SI CA/NV Speedo Sectionals Oceanside venue |
| 100 Breaststroke | SCY | 1:00.30 | AAA+2.51s to AAAA | 2026-05-13 | 2026 Rose Post CIF Closed Invitation 5_12-13_ venue |
| 200 Breaststroke | SCY | 2:13.29 | AA+2.00s to AAA | 2025-07-15 | Rose Post LAI Intrasquad venue |
| 50 Butterfly | SCY | 26.24 | A+0.15s to AA | 2025-09-20 | Red vs Black venue |
| 100 Butterfly | SCY | 55.36 | A+0.07s to AA | 2025-11-01 | 2025 "Our Rising Tides" 16u SCY P/F Meet venue |
| 200 Butterfly | SCY | 2:10.12 | BB+0.93s to A | 2025-11-23 | 2025 CANY Cranberry venue |
| 100 Individual Medley | SCY | 1:20.58 | 2021-05-01 | 2021 UT Red Cliffs Swim Classic venue | |
| 200 Individual Medley | SCY | 2:03.47 | AA+4.58s to AAA | 2025-12-12 | 2025 CA SCS/SCAT WAG venue |
| 400 Individual Medley | SCY | 4:33.14 | A+7.05s to AA | 2025-09-21 | 2025 TSM Aquatics Season Opener venue |
| 1500 Freestyle | LCM | 18:50.85 | A+31.46s to AA | 2026-05-22 | 2026 CA 30th NOVA-Speedo Grand Challenge venue |
| 100 Backstroke | LCM | 1:07.33 | A+2.04s to AA | 2025-07-26 | 2025 CA SCS Summer A/G Champs |
| 200 Backstroke | LCM | 2:32.93 | BB+5.24s to A | 2025-06-28 | 2025 CA SBSC Semana Nautica LCM Meet venue |
| 50 Breaststroke | LCM | 31.89 | AAA+0.40s to AAAA | 2026-06-12 | 2026 SCS June AG Invite-CANY venue |
| 100 Breaststroke | LCM | 1:08.80 | AAA+1.41s to AAAA | 2026-06-13 | 2026 SCS June AG Invite-CANY venue |
| 200 Breaststroke | LCM | 2:42.96 | A+2.47s to AA | 2025-06-15 | 2025 CA SCS RAA June Age Group Championships venue |
| 50 Butterfly | LCM | 29.64 | A+0.15s to AA | 2025-04-05 | Rose Bowl Aquatics Red vs Black Intrasquad venue |
| 100 Butterfly | LCM | 1:02.91 | AA+2.42s to AAA | 2025-07-25 | 2025 CA SCS Summer A/G Champs |
| 200 Butterfly | LCM | 2:40.41 | B+0.42s to BB | 2024-07-25 | 2024 CA SCS/ BREA Summer A/G Champs slow pool |
| 200 Individual Medley | LCM | 2:25.16 | A+0.17s to AA | 2025-06-13 | 2025 CA SCS RAA June Age Group Championships venue |
| 400 Individual Medley | LCM | 5:11.35 | A+2.36s to AA | 2025-06-12 | 2025 CA SCS RAA June Age Group Championships venue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 16.
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.
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
100 Breaststroke LCM 1:08.80
Front half 32.84s · back half 35.96s
200 Breaststroke LCM 2:42.96
Front half 79.70s · back half 83.26s
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.
Progression
Faster times are higher. One card per event, all courses & history.