David Chen

Mage 10MTORPNTHSC

211 plausible swims · 41 meets · 2024-09-20 → 2026-06-27

Personal records

EventCourseBest CutDateMeet
25 Freestyle SCY 16.10 2025-05-18 2025 John DeRoest Sextathlon Swim Meet fast pool
50 Freestyle SCY 32.10 BB+0.91s to A 2026-02-22 2026 Arena Short Course 10&U Championships venue
100 Freestyle SCY 1:14.70 BB+4.51s to A 2026-01-18 2026 THSC 14&U Winter Showcase venue
200 Freestyle SCY 2:58.00 B+7.31s to BB 2025-11-08 2025 THSC November Open venue
25 Backstroke SCY 20.22 2025-05-17 2025 John DeRoest Sextathlon Swim Meet fast pool
50 Backstroke SCY 39.98 BB+2.19s to A 2026-05-16 2026 John DeRoest Sextathlon Swim Meet fast pool
100 Backstroke SCY 1:24.28 BB+4.39s to A 2026-01-17 2026 THSC 14&U Winter Showcase venue
25 Breaststroke SCY 21.90 2025-04-25 2025 THSC April FNT venue
50 Breaststroke SCY 38.83 AA+0.54s to AAA 2024-11-08 2024 THSC November Invitational
100 Breaststroke SCY 1:34.77 BB+3.08s to A 2026-03-20 2026 NW Region Age Group Champs- Approved venue
25 Butterfly SCY 18.68 2025-05-17 2025 John DeRoest Sextathlon Swim Meet
50 Butterfly SCY 37.25 BB+1.16s to A 2026-02-22 2026 Arena Short Course 10&U Championships venue
100 Butterfly SCY 1:24.35 A+4.56s to AA 2026-03-19 2026 NW Region Age Group Champs- Approved
100 Individual Medley SCY 1:24.60 BB+4.71s to A 2026-05-17 2026 John DeRoest Sextathlon Swim Meet fast pool
200 Individual Medley SCY 3:00.60 BB+7.11s to A 2026-01-16 2026 THSC 14&U Winter Showcase venue
50 Freestyle LCM 37.71 BB+2.02s to A 2026-06-27 2026 PN SMAC Summer Classic Invite- Approved venue
100 Freestyle LCM 1:26.96 BB+6.77s to A 2026-05-24 2026 THSC Memorial Weekend Meet venue
200 Freestyle LCM 3:07.78 BB+14.09s to A 2026-05-23 2026 THSC Memorial Weekend Meet venue
400 Freestyle LCM 6:48.54 BB+41.35s to A 2026-06-12 2026 THSC June Open venue
50 Backstroke LCM 44.46 BB+1.37s to A 2026-05-24 2026 THSC Memorial Weekend Meet venue
100 Backstroke LCM 1:37.23 BB+4.94s to A 2026-05-22 2026 THSC Memorial Weekend Meet
50 Breaststroke LCM 49.72 BB+1.83s to A 2026-06-14 2026 THSC June Open venue
100 Breaststroke LCM 1:52.14 BB+6.55s to A 2026-05-02 2026 THSC Spring Invite venue
50 Butterfly LCM 41.74 BB+1.15s to A 2026-05-23 2026 THSC Memorial Weekend Meet venue
100 Butterfly LCM 1:32.67 A+1.98s to AA 2026-06-27 2026 PN SMAC Summer Classic Invite- Approved venue
200 Individual Medley LCM 3:20.59 BB+2.30s to A 2026-05-24 2026 THSC Memorial Weekend Meet venue

Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 10.

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

LegCourseTime StartRelayDateMeet
50 Breaststroke SCY 47.90 flying 200 Medley Relay (leg 2) 2025-01-19 2025 Thunderbolt Round Robin Invitational

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 · LCM

2894 points (5/5 events)

EventTime Points
200 FR LCM 3:07.78 527
100 BK LCM 1:37.23 556
100 BR LCM 1:52.14 546
100 FL LCM 1:32.67 633
200 IM LCM 3:20.59 632

IMR 10 & under · SCY

3005 points (5/5 events)

EventTime Points
100 FR SCY 1:14.70 536
50 BK SCY 39.98 521
50 BR SCY 38.83 823
50 FL SCY 37.25 564
100 IM SCY 1:24.60 561

Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.

PR splits

100 Freestyle SCY 1:14.70

35.89
38.81

Front half 35.89s · back half 38.81s

200 Freestyle SCY 2:58.00

37.60
47.87
47.91
44.62

Front half 85.47s · back half 92.53s

100 Backstroke SCY 1:24.28

41.67
42.61

Front half 41.67s · back half 42.61s

100 Breaststroke SCY 1:34.77 RT 0.63s

44.31
50.46

Front half 44.31s · back half 50.46s

100 Individual Medley SCY 1:24.60

39.31
45.29

Front half 39.31s · back half 45.29s

200 Individual Medley SCY 3:00.60

40.04
100.33
40.23

100 Freestyle LCM 1:26.96

41.69
45.27

Front half 41.69s · back half 45.27s

200 Freestyle LCM 3:07.78

40.72
48.66
50.48
47.92

Front half 89.38s · back half 98.40s

400 Freestyle LCM 6:48.54

40.29
51.40
50.63
54.36
54.94
53.62
53.10
50.20

Front half 196.68s · back half 211.86s

100 Breaststroke LCM 1:52.14

51.76
60.38

Front half 51.76s · back half 60.38s

200 Individual Medley LCM 3:20.59

44.32
52.89
58.35
45.03

Front half 97.21s · back half 103.38s

Reaction time

fastest 0.63s average 0.659s slowest 0.70s 9 electronic starts

Start reaction over time faster starts higher

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.

25 Freestyle SCY 16.10 7 swims
50 Freestyle SCY 32.10 14 swims
100 Freestyle SCY 1:14.70 13 swims
200 Freestyle SCY 2:58.00 4 swims
25 Backstroke SCY 20.22 7 swims
50 Backstroke SCY 39.98 12 swims
100 Backstroke SCY 1:24.28 7 swims
25 Breaststroke SCY 21.90 7 swims
50 Breaststroke SCY 38.83 16 swims
100 Breaststroke SCY 1:34.77 9 swims
25 Butterfly SCY 18.68 7 swims
50 Butterfly SCY 37.25 9 swims
100 Butterfly SCY 1:24.35 9 swims
100 Individual Medley SCY 1:24.60 14 swims
200 Individual Medley SCY 3:00.60 7 swims
50 Freestyle LCM 37.71 11 swims
100 Freestyle LCM 1:26.96 9 swims
200 Freestyle LCM 3:07.78 5 swims
400 Freestyle LCM 6:48.54 1 swim
50 Backstroke LCM 44.46 5 swims
100 Backstroke LCM 1:37.23 8 swims
50 Breaststroke LCM 49.72 8 swims
100 Breaststroke LCM 1:52.14 7 swims
50 Butterfly LCM 41.74 7 swims
100 Butterfly LCM 1:32.67 3 swims
200 Individual Medley LCM 3:20.59 5 swims