swimstats

David Zhou

Mage 12PNIST

192 plausible swims · 35 meets · 2024-01-01 → 2026-07-25

Personal records

EventCourseBest CutDateMeet
50 Freestyle SCY 24.72 AAA+0.13s to AAAA·+1.53s to Sectionals 2025-11-24 1663578
100 Freestyle SCY 1:05.01 BB+3.72s to A·+14.02s to Sectionals 2026-03-07 2026 BBST Seize the Day Invitationalvenue
200 Freestyle SCY 2:25.02 B+0.13s to BB·+33.23s to Sectionals 2026-03-01 2026 PN February AGI, Div 1-Approvedvenue
50 Backstroke SCY 31.59 A+0.40s to AA·+7.90s to Futures 2026-02-16 1705003
100 Backstroke SCY 1:15.39 BB+6.10s to A·+19.90s to Sectionals 2026-03-28 2026 PN Spring Showdown, Div.1 Approvedvenue
200 Backstroke SCY 2:35.24 BB+7.05s to A·+33.95s to Sectionals 2025-11-24 1663578
50 Breaststroke SCY 42.31 B+2.22s to BB·+16.02s to Futures 2025-11-23 2025 PN November AGI, Div 3 (UPAC)venue
100 Breaststroke SCY 1:30.02 B+4.53s to BB·+26.83s to Sectionals 2026-03-07 2026 BBST Seize the Day Invitationalvenue
200 Breaststroke SCY 3:19.39 +2.90s to B·+62.10s to Sectionals 2026-01-25 2026 PN IST January Invitational- Approvedvenue
50 Butterfly SCY 35.06 B+0.87s to BB·+12.17s to Futures 2025-11-23 2025 PN November AGI, Div 3 (UPAC)venue
100 Butterfly SCY 1:21.17 B+5.08s to BB·+25.98s to Sectionals 2026-01-24 2026 PN IST January Invitational- Approvedvenue
100 Individual Medley SCY 1:06.92 AA+2.93s to AAA 2025-03-29 2025 PN Spring Finale, Division 1
200 Individual Medley SCY 2:44.79 BB+12.50s to A·+40.80s to Sectionals 2026-03-07 2026 BBST Seize the Day Invitationalvenue
50 Freestyle LCM 32.82 BB+0.73s to A·+5.83s to Sectionals 2026-06-14 2026 PN IST June Invtational- Approvedvenue
100 Freestyle LCM 1:14.65 BB+4.26s to A·+15.66s to Sectionals 2026-05-17 2026 PN IST Sockeye Springtime Madness App.venue
200 Freestyle LCM 2:46.92 B+0.53s to BB·+38.23s to Sectionals 2026-06-14 2026 PN IST June Invtational- Approvedvenue
400 Freestyle LCM 6:09.20 B+15.21s to BB·+94.81s to Sectionals 2026-06-13 2026 PN IST June Invtational- Approvedvenue
50 Backstroke LCM 39.47 BB+1.68s to A·+11.58s to Futures 2026-05-17 2026 PN IST Sockeye Springtime Madness App.venue
100 Backstroke LCM 1:41.95 +4.76s to B·+36.76s to Sectionals 2025-05-03 2025 PN BC May Flowersvenue
200 Backstroke LCM 3:09.18 B+0.69s to BB·+47.69s to Sectionals 2026-07-25 2026 PN LC 12&U Championships-Approvedvenue
50 Breaststroke LCM 47.93 B+2.04s to BB·+17.04s to Futures 2026-05-16 2026 PN IST Sockeye Springtime Madness App.venue
100 Breaststroke LCM 1:58.59 +10.80s to B·+44.89s to Sectionals 2025-06-14 2025 IST June Invtationalvenue
200 Breaststroke LCM 3:53.38 +5.49s to B·+72.50s to Sectionals 2026-06-14 2026 PN IST June Invtational- Approvedvenue
50 Butterfly LCM 37.70 BB+2.41s to A·+11.41s to Futures 2026-06-13 2026 PN IST June Invtational- Approvedvenue
100 Butterfly LCM 1:27.68 B+0.39s to BB·+24.59s to Sectionals 2026-07-25 2026 PN LC 12&U Championships-Approvedvenue
200 Individual Medley LCM 3:13.51 B+3.92s to BB·+48.82s to Sectionals 2026-05-16 2026 PN IST Sockeye Springtime Madness App.venue

Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 12.

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.

Fastest relay legs

LegCourseTime StartRelayDateMeet
50 Freestyle SCY 31.60 flying 200 Free Relay (leg 2) 2025-11-23 2025 PN November AGI, Div 3 (UPAC)
100 Freestyle SCY 1:03.53 flying 400 Medley Relay (leg 4) 2026-03-21 2026 NW Region Age Group Champs- Approved
50 Butterfly SCY 35.90 flying 200 Medley Relay (leg 3) 2025-09-28 2025 PN IST Sockeye Sprints
50 Freestyle LCM 31.52 flying 200 Free Relay (leg 4) 2026-07-25 2026 PN LC 12&U Championships-Approved
50 Freestyle LCM 32.84 flying 200 Medley Relay (leg 4) 2026-07-25 2026 PN LC 12&U Championships-Approved

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 11-12 · LCM

2021 points (5/5 events)

EventTime Points
400 FR LCM 6:09.20 464
100 BK LCM 1:41.95 329
100 BR LCM 1:58.59 295
100 FL LCM 1:27.68 462
200 IM LCM 3:13.51 471

IMR 11-12 · SCY

2848 points (5/5 events)

EventTime Points
200 FR SCY 2:25.02 525
50 BK SCY 31.59 710
50 BR SCY 42.31 412
50 FL SCY 35.06 441
100 IM SCY 1:06.92 760

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

PR splits

100 Freestyle SCY 1:05.01

31.17
33.84

Front half 31.17s · back half 33.84s

200 Freestyle SCY 2:25.02

32.63
36.86
37.28
38.25

Front half 69.49s · back half 75.53s

100 Backstroke SCY 1:15.39

36.52
38.87

Front half 36.52s · back half 38.87s

100 Breaststroke SCY 1:30.02

42.67
47.35

Front half 42.67s · back half 47.35s

200 Breaststroke SCY 3:19.39

44.75
52.53
50.60
51.51

Front half 97.28s · back half 102.11s

100 Butterfly SCY 1:21.17

37.42
43.75

Front half 37.42s · back half 43.75s

200 Individual Medley SCY 2:44.79

35.76
43.32
48.59
37.12

Front half 79.08s · back half 85.71s

200 Freestyle LCM 2:46.92 RT 0.68s

79.67
87.25

Front half 79.67s · back half 87.25s

400 Freestyle LCM 6:09.20 RT 0.66s

85.90
95.19
96.36
91.75

Front half 181.09s · back half 188.11s

200 Backstroke LCM 3:09.18

91.99
97.19

Front half 91.99s · back half 97.19s

200 Breaststroke LCM 3:53.38 RT 0.67s

111.58
121.80

Front half 111.58s · back half 121.80s

200 Individual Medley LCM 3:13.51 RT 0.67s· 16.3 min after 100 Butterfly

89.25
104.26

Front half 89.25s · back half 104.26s

Reaction time

fastest 0.59s average 0.688s slowest 0.77s 25 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.

50 Freestyle SCY 24.72 24 swims
100 Freestyle SCY 1:05.01 22 swims
200 Freestyle SCY 2:25.02 12 swims
50 Backstroke SCY 31.59 16 swims
100 Backstroke SCY 1:15.39 15 swims
200 Backstroke SCY 2:35.24 3 swims
50 Breaststroke SCY 42.31 13 swims
100 Breaststroke SCY 1:30.02 8 swims
200 Breaststroke SCY 3:19.39 2 swims
50 Butterfly SCY 35.06 15 swims
100 Butterfly SCY 1:21.17 3 swims
100 Individual Medley SCY 1:06.92 19 swims
200 Individual Medley SCY 2:44.79 6 swims
50 Freestyle LCM 32.82 4 swims
100 Freestyle LCM 1:14.65 4 swims
200 Freestyle LCM 2:46.92 3 swims
400 Freestyle LCM 6:09.20 1 swim
50 Backstroke LCM 39.47 4 swims
100 Backstroke LCM 1:41.95 3 swims
200 Backstroke LCM 3:09.18 2 swims
50 Breaststroke LCM 47.93 3 swims
100 Breaststroke LCM 1:58.59 1 swim
200 Breaststroke LCM 3:53.38 1 swim
50 Butterfly LCM 37.70 4 swims
100 Butterfly LCM 1:27.68 2 swims
200 Individual Medley LCM 3:13.51 2 swims