David Chen

Mage 10MTORPNTHSC

198 plausible swims · 39 meets · 2024-09-20 → 2026-10-25

Personal records

EventCourseBest CutDateMeet
25 Freestyle SCY 16.10 2025-05-18 2025 John DeRoest Sextathlon Swim Meetvenue
50 Freestyle SCY 32.10 BB+0.91s to A·+8.91s to Sectionals 2026-02-22 2026 Arena Short Course 10&U Championshipsvenue
100 Freestyle SCY 1:09.43 A+2.24s to AA·+18.44s to Sectionals 2026-10-24 2026 THSC Fall Invitationalvenue
200 Freestyle SCY 2:29.48 A+4.09s to AA·+37.69s to Sectionals 2026-10-24 2026 THSC Fall Invitationalvenue
25 Backstroke SCY 20.22 2025-05-17 2025 John DeRoest Sextathlon Swim Meetvenue
50 Backstroke SCY 39.98 BB+2.19s to A·+16.29s to Futures 2026-05-16 2026 John DeRoest Sextathlon Swim Meetvenue
100 Backstroke SCY 1:18.79 A+2.50s to AA·+23.30s to Sectionals 2026-10-24 2026 THSC Fall Invitationalvenue
25 Breaststroke SCY 21.90 2025-04-25 2025 THSC April FNTvenue
50 Breaststroke SCY 42.03 A+1.84s to AA·+15.74s to Futures 2026-02-21 2026 Arena Short Course 10&U Championshipsvenue
100 Breaststroke SCY 1:28.00 A+0.31s to AA·+24.81s to Sectionals 2026-10-25 2026 THSC Fall Invitationalvenue
25 Butterfly SCY 18.89 2025-04-25 2025 THSC April FNTvenue
50 Butterfly SCY 37.25 BB+1.16s to A·+14.36s to Futures 2026-02-22 2026 Arena Short Course 10&U Championshipsvenue
100 Butterfly SCY 1:16.94 AA+2.05s to AAA·+21.75s to Sectionals 2026-10-25 2026 THSC Fall Invitationalvenue
100 Individual Medley SCY 1:17.75 A+1.26s to AA 2026-10-25 2026 THSC Fall Invitationalvenue
200 Individual Medley SCY 2:40.73 AA+2.34s to AAA·+36.74s to Sectionals 2026-10-23 2026 THSC Fall Invitationalvenue
50 Freestyle LCM 37.71 BB+2.02s to A·+10.72s to Sectionals 2026-06-27 2026 PN SMAC Summer Classic Invite- Approvedvenue
100 Freestyle LCM 1:26.96 BB+6.77s to A·+27.97s to Sectionals 2026-05-24 2026 THSC Memorial Weekend Meetvenue
200 Freestyle LCM 3:07.78 BB+14.09s to A·+59.09s to Sectionals 2026-05-23 2026 THSC Memorial Weekend Meetvenue
400 Freestyle LCM 6:48.54 BB+41.35s to A·+134.15s to Sectionals 2026-06-12 2026 THSC June Openvenue
50 Backstroke LCM 44.46 BB+1.37s to A·+16.57s to Futures 2026-05-24 2026 THSC Memorial Weekend Meetvenue
100 Backstroke LCM 1:36.01 BB+3.72s to A·+30.82s to Sectionals 2026-07-11 2026 OSI Arena Summer LC 12&U Championships -fast pool
50 Breaststroke LCM 48.46 BB+0.57s to A·+17.57s to Futures 2026-07-12 2026 OSI Arena Summer LC 12&U Championships -fast pool
100 Breaststroke LCM 1:42.73 A+1.64s to AA·+29.03s to Sectionals 2026-07-11 2026 OSI Arena Summer LC 12&U Championships -fast pool
50 Butterfly LCM 41.15 BB+0.56s to A·+14.86s to Futures 2026-07-11 2026 OSI Arena Summer LC 12&U Championships -fast pool
100 Butterfly LCM 1:32.67 A+1.98s to AA·+29.58s to Sectionals 2026-06-27 2026 PN SMAC Summer Classic Invite- Approvedvenue
200 Individual Medley LCM 3:20.59 BB+2.30s to A·+55.90s to Sectionals 2026-05-24 2026 THSC Memorial Weekend Meetvenue

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

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

LegCourseTime StartRelayDateMeet
50 Freestyle SCY 33.30 flat 200 Free Relay 2026-10-24 2026 THSC Fall Invitational
50 Freestyle SCY 33.30 flying 200 Free Relay (leg 3) 2026-02-21 2026 Arena Short Course 10&U Championships
50 Breaststroke SCY 41.55 flying 200 Medley Relay (leg 2) 2026-10-25 2026 THSC Fall Invitational
50 Butterfly SCY 38.02 flying 200 Medley Relay (leg 3) 2026-01-17 2026 THSC 14&U Winter Showcase
50 Freestyle LCM 47.12 flying 200 Free Relay (leg 3) 2025-06-27 2025 Howard Jones Open
50 Breaststroke LCM 1:40.43 flying 200 Medley Relay (leg 2) 2026-07-12 2026 OSI Arena Summer LC 12&U 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 10 & under · SCY

3660 points (5/5 events)

EventTime Points
200 FR SCY 2:29.48 699
100 BK SCY 1:18.79 671
100 BR SCY 1:28.00 717
100 FL SCY 1:16.94 746
200 IM SCY 2:40.73 827

IMR 10 & under · SCY

3124 points (5/5 events)

EventTime Points
100 FR SCY 1:09.43 667
50 BK SCY 39.98 521
50 BR SCY 42.03 649
50 FL SCY 37.25 564
100 IM SCY 1:17.75 723

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

PR splits

100 Freestyle SCY 1:09.43

33.46
35.97

Front half 33.46s · back half 35.97s

200 Freestyle SCY 2:29.48

33.27
38.70
38.57
38.94

Front half 71.97s · back half 77.51s

100 Backstroke SCY 1:18.79

38.87
39.92

Front half 38.87s · back half 39.92s

100 Breaststroke SCY 1:28.00

41.49
46.51

Front half 41.49s · back half 46.51s

100 Butterfly SCY 1:16.94

35.57
41.37

Front half 35.57s · back half 41.37s

100 Individual Medley SCY 1:17.75

36.79
40.96

Front half 36.79s · back half 40.96s

200 Individual Medley SCY 2:40.73

35.55
41.07
47.42
36.69

Front half 76.62s · back half 84.11s

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 Backstroke LCM 1:36.01

45.87
50.14

Front half 45.87s · back half 50.14s

100 Breaststroke LCM 1:42.73

49.87
52.86

Front half 49.87s · back half 52.86s

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.

Swim history

Every recorded swim, newest first
DateEventCourse TimeAge RoundMeet

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.

25 Freestyle SCY 16.10 7 swims
50 Freestyle SCY 32.10 14 swims
100 Freestyle SCY 1:09.43 13 swims
200 Freestyle SCY 2:29.48 5 swims
25 Backstroke SCY 20.22 7 swims
50 Backstroke SCY 39.98 11 swims
100 Backstroke SCY 1:18.79 7 swims
25 Breaststroke SCY 21.90 7 swims
50 Breaststroke SCY 42.03 14 swims
100 Breaststroke SCY 1:28.00 9 swims
25 Butterfly SCY 18.89 6 swims
50 Butterfly SCY 37.25 9 swims
100 Butterfly SCY 1:16.94 9 swims
100 Individual Medley SCY 1:17.75 14 swims
200 Individual Medley SCY 2:40.73 8 swims
50 Freestyle LCM 37.71 7 swims
100 Freestyle LCM 1:26.96 6 swims
200 Freestyle LCM 3:07.78 4 swims
400 Freestyle LCM 6:48.54 1 swim
50 Backstroke LCM 44.46 5 swims
100 Backstroke LCM 1:36.01 6 swims
50 Breaststroke LCM 48.46 6 swims
100 Breaststroke LCM 1:42.73 5 swims
50 Butterfly LCM 41.15 6 swims
100 Butterfly LCM 1:32.67 4 swims
200 Individual Medley LCM 3:20.59 3 swims