swimstats

Sean Zhao

Mage 15CZGUILINMIOKOZSDWIILNTAPPD

152 plausible swims · 14 meets · 2022-08-04 → 2026-07-12

Personal records

EventCourseBest CutDateMeet
100 Freestyle SCY 47.90 AAA+0.41s to AAAA·Sectionals ✓+1.51s to Futures 2026-03-15 2026 ISI Winter 11-14 Age Group Championshipsvenue
200 Freestyle SCY 1:43.46 AAAA·Sectionals ✓+1.87s to Futures 2026-03-13 2026 ISI Winter 11-14 Age Group Championshipsvenue
500 Freestyle SCY 4:50.40 AAA+8.11s to AAAA·Sectionals ✓+13.31s to Futures 2025-03-15 2025 ISI Winter 11-14 Age Group Championshipsvenue
1000 Freestyle SCY 10:20.51 AA+4.72s to AAA·+12.02s to Sectionals 2024-03-07 2024 IL Swimming SC Age Group Championshipsslow pool
1650 Freestyle SCY 16:49.57 AAA+28.78s to AAAA·Sectionals ✓+44.08s to Futures 2025-03-13 2025 ISI Winter 11-14 Age Group Championshipsvenue
100 Backstroke SCY 52.76 AAA+0.67s to AAAA·Sectionals ✓+1.27s to Futures 2026-03-14 2026 ISI Winter 11-14 Age Group Championshipsvenue
200 Backstroke SCY 1:55.23 AAA+1.34s to AAAA·Sectionals ✓+2.44s to Futures 2026-03-15 2026 ISI Winter 11-14 Age Group Championshipsvenue
200 Breaststroke SCY 2:22.54 A+1.65s to AA·+3.95s to Sectionals 2024-06-15 2025 Central Zone 14 & Under Championship Meevenue
100 Butterfly SCY 56.78 A+0.39s to AA·+2.79s to Sectionals 2024-06-15 2024 CZ Multi-Cultural Meetvenue
200 Butterfly SCY 2:08.43 A+1.94s to AA·+5.64s to Sectionals 2024-06-14 2024 CZ Multi-Cultural Meetvenue
100 Individual Medley SCY 58.70 2024-03-08 2024 IL Swimming SC Age Group Championshipsslow pool
200 Individual Medley SCY 1:55.25 AAAA·Sectionals ✓+1.36s to Futures 2026-03-14 2026 ISI Winter 11-14 Age Group Championshipsvenue
400 Individual Medley SCY 4:06.64 AAAA·Futures ✓+10.15s to Winter JNs 2026-03-13 2026 ISI Winter 11-14 Age Group Championshipsvenue
100 Freestyle LCM 54.96 AAA+0.47s to AAAA·Sectionals ✓+1.37s to Futures 2025-07-24 Illinois Swimming Age Group Champs LC 25venue
200 Freestyle LCM 1:57.22 AAAA·Futures ✓+1.93s to Winter JNs 2026-07-09 2026 CENTRAL ZONE NORTH SUMMER CHAMPIONSHIPSvenue
400 Freestyle LCM 4:19.16 AAA+3.57s to AAAA·Sectionals ✓+9.17s to Futures 2025-07-25 Illinois Swimming Age Group Champs LC 25venue
800 Freestyle LCM 9:00.65 AAA+12.16s to AAAA·Sectionals ✓+19.96s to Futures 2025-08-07 2025 Central Zone 14 & Under Championship Meevenue
1500 Freestyle LCM 17:42.55 AAA+43.36s to AAAA·+2.56s to Sectionals 2024-07-21 2024 IL Swimming LC Age Group Championshipsvenue
50 Backstroke LCM 28.26 AAAA·Sectionals ✓+0.37s to Futures 2026-07-09 2024 Speedo Grand Chalenge
100 Backstroke LCM 1:01.06 AAA+0.17s to AAAA·Sectionals ✓+0.47s to Futures 2025-07-24 Illinois Swimming Age Group Champs LC 25venue
200 Backstroke LCM 2:10.92 AAAA·Futures ✓+2.63s to Winter JNs 2026-07-09 2024 Speedo Grand Chalenge
200 Breaststroke LCM 2:34.68 AAA+4.69s to AAAA·Sectionals ✓+5.59s to Futures 2026-07-09 2024 Speedo Grand Chalenge
200 Butterfly LCM 2:18.86 AA+0.87s to AAA·Sectionals ✓+8.67s to Futures 2026-07-09 2024 Speedo Grand Chalenge
200 Individual Medley LCM 2:13.93 AAAA·Sectionals ✓+1.14s to Futures 2026-07-09 2024 Speedo Grand Chalenge
400 Individual Medley LCM 4:47.00 AAAA·Sectionals ✓+4.61s to Futures 2025-07-26 Illinois Swimming Age Group Champs LC 25venue

Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 15.

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 21.92 flat 200 Free Relay 2026-03-12 2026 ISI Winter 11-14 Age Group Championships
50 Freestyle SCY 21.34 flying 200 Medley Relay (leg 4) 2026-03-13 2026 ISI Winter 11-14 Age Group Championships
50 Freestyle SCY 22.37 flying 200 Free Relay (leg 2) 2025-03-13 2025 ISI Winter 11-14 Age Group Championships
100 Freestyle SCY 46.90 flying 400 Free Relay (leg 4) 2026-03-15 2026 ISI Winter 11-14 Age Group Championships
100 Freestyle SCY 46.93 flying 400 Medley Relay (leg 4) 2026-03-14 2026 ISI Winter 11-14 Age Group Championships
200 Freestyle SCY 1:48.49 flying 800 Free Relay (leg 4) 2026-03-13 2026 ISI Winter 11-14 Age Group Championships
50 Backstroke SCY 26.92 flat 200 Medley Relay 2024-06-15 2024 CZ Multi-Cultural Meet
100 Backstroke SCY 57.49 flat 400 Medley Relay 2024-03-09 2024 IL Swimming SC Age Group Championships
50 Butterfly SCY 26.09 flying 200 Medley Relay (leg 3) 2024-06-16 2024 CZ Multi-Cultural Meet
50 Freestyle LCM 24.10 flying 200 Free Relay (leg 3) 2026-07-09 2026 CENTRAL ZONE NORTH SUMMER CHAMPIONSHIPS
100 Freestyle LCM 56.17 flat 400 Free Relay 2025-08-10 2025 Central Zone 14 & Under Championship Mee
100 Freestyle LCM 56.15 flying 400 Medley Relay (leg 4) 2025-08-09 2025 Central Zone 14 & Under Championship Mee
100 Freestyle LCM 53.48 flying 400 Free Relay (leg 4) 2026-07-11 2026 CENTRAL ZONE NORTH SUMMER CHAMPIONSHIPS
200 Freestyle LCM 2:05.84 flat 800 Free Relay 2024-07-19 2024 IL Swimming LC Age Group Championships
200 Freestyle LCM 1:57.13 flying 800 Free Relay (leg 2) 2026-07-10 2026 CENTRAL ZONE NORTH SUMMER CHAMPIONSHIPS
50 Backstroke LCM 28.51 flat 200 Medley Relay 2026-07-09 2026 CENTRAL ZONE NORTH SUMMER CHAMPIONSHIPS
100 Backstroke LCM 1:01.68 flat 400 Medley Relay 2026-07-12 2026 CENTRAL ZONE NORTH SUMMER 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 15-16 · LCM

5398 points (6/6 events)

EventTime Points
400 FR LCM 4:19.16 904
200 BK LCM 2:10.92 960
200 BR LCM 2:34.68 839
200 FL LCM 2:18.86 797
200 IM LCM 2:13.93 959
400 IM LCM 4:47.00 939

IMR 15-16 · SCY

3488 points (4/5 events — incomplete)

EventTime Points
200 FR SCY 1:43.46 957
100 BK SCY 52.76 886
100 FL SCY 56.78 698
200 IM SCY 1:55.25 947
100 BR SCY— 0

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

PR splits

100 Freestyle SCY 47.90

23.25
24.65

Front half 23.25s · back half 24.65s

200 Freestyle SCY 1:43.46

24.08
26.30
26.58
26.50

Front half 50.38s · back half 53.08s

500 Freestyle SCY 4:50.40 RT 0.65s

26.24
28.55
29.73
29.90
29.66
29.99
29.89
29.64
28.77
28.03

Front half 144.08s · back half 146.32s

1000 Freestyle SCY 10:20.51

27.69
30.17
30.82
31.18
30.75
30.96
31.51
31.75
31.16
31.54
31.52
31.66
31.56
31.78
31.60
31.71
31.47
31.30
30.73
29.65

Front half 307.53s · back half 312.98s

1650 Freestyle SCY 16:49.57 RT 0.67s

26.14
29.40
29.73
29.90
30.63
30.39
30.38
30.27
30.82
30.68
30.65
30.90
30.81
30.68
30.81
30.92
30.96
30.84
30.89
30.78
31.10
30.72
31.36
31.04
31.22
31.04
31.23
31.23
31.25
31.22
31.21
30.50
29.87

100 Backstroke SCY 52.76

25.45
27.31

Front half 25.45s · back half 27.31s

200 Backstroke SCY 1:55.23

26.68
29.39
29.95
29.21

Front half 56.07s · back half 59.16s

200 Breaststroke SCY 2:22.54

32.41
36.62
37.62
35.89

Front half 69.03s · back half 73.51s

100 Butterfly SCY 56.78

26.81
29.97

Front half 26.81s · back half 29.97s

200 Butterfly SCY 2:08.43

28.49
33.59
34.11
32.24

Front half 62.08s · back half 66.35s

100 Individual Medley SCY 58.70

27.43
31.27

Front half 27.43s · back half 31.27s

200 Individual Medley SCY 1:55.25

25.27
27.95
35.30
26.73

Front half 53.22s · back half 62.03s

400 Individual Medley SCY 4:06.64

26.20
29.45
30.44
31.03
35.70
36.82
29.80
27.20

Front half 117.12s · back half 129.52s

100 Freestyle LCM 54.96 RT 0.66s

26.62
28.34

Front half 26.62s · back half 28.34s

200 Freestyle LCM 1:57.22 RT 0.67s

27.31
29.44
30.77
29.70

Front half 56.75s · back half 60.47s

400 Freestyle LCM 4:19.16 RT 0.68s

29.02
31.41
32.91
33.17
33.29
33.55
33.45
32.36

Front half 126.51s · back half 132.65s

800 Freestyle LCM 9:00.65

29.89
33.00
34.00
34.62
34.33
34.50
34.07
34.03
33.89
34.29
33.94
34.33
34.13
34.36
33.87
33.40

Front half 268.44s · back half 272.21s

1500 Freestyle LCM 17:42.55

31.18
34.17
35.15
35.51
35.82
34.93
35.77
35.82
35.82
35.09
35.81
35.79
36.05
35.82
35.77
35.51
35.99
35.86
35.53
35.75
35.71
35.53
35.76
35.57
35.87
35.84
35.71
35.62
35.86
33.94

Front half 528.50s · back half 534.05s

100 Backstroke LCM 1:01.06 RT 0.65s

29.61
31.45

Front half 29.61s · back half 31.45s

200 Backstroke LCM 2:10.92 RT 0.66ssplit/total mismatch

30.28
2.86
0.51
0.20

Front half 33.14s · back half 97.78s

200 Breaststroke LCM 2:34.68 RT 0.72ssplit/total mismatch

34.28
4.27
2.30
0.15

Front half 38.55s · back half 116.13s

200 Butterfly LCM 2:18.86 split/total mismatch

29.62
35.58
36.85
36.81

200 Individual Medley LCM 2:13.93 RT 0.71ssplit/total mismatch

28.56
33.26
40.52
31.59

400 Individual Medley LCM 4:47.00 RT 0.67s

30.72
36.18
35.77
35.40
43.06
42.53
32.59
30.75

Front half 138.07s · back half 148.93s

Reaction time

fastest 0.58s average 0.689s slowest 0.98s 40 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.

100 Freestyle SCY 47.90 5 swims
200 Freestyle SCY 1:43.46 9 swims
500 Freestyle SCY 4:50.40 2 swims
1000 Freestyle SCY 10:20.51 1 swim
1650 Freestyle SCY 16:49.57 1 swim
100 Backstroke SCY 52.76 9 swims
200 Backstroke SCY 1:55.23 9 swims
200 Breaststroke SCY 2:22.54 3 swims
100 Butterfly SCY 56.78 3 swims
200 Butterfly SCY 2:08.43 3 swims
100 Individual Medley SCY 58.70 2 swims
200 Individual Medley SCY 1:55.25 9 swims
400 Individual Medley SCY 4:06.64 2 swims
100 Freestyle LCM 54.96 2 swims
200 Freestyle LCM 1:57.22 20 swims
400 Freestyle LCM 4:19.16 8 swims
800 Freestyle LCM 9:00.65 7 swims
1500 Freestyle LCM 17:42.55 1 swim
50 Backstroke LCM 28.26 4 swims
100 Backstroke LCM 1:01.06 10 swims
200 Backstroke LCM 2:10.92 16 swims
200 Breaststroke LCM 2:34.68 2 swims
200 Butterfly LCM 2:18.86 2 swims
200 Individual Medley LCM 2:13.93 15 swims
400 Individual Medley LCM 4:47.00 7 swims