Sean Zhou

Mage 16GULANTSESTKATY

194 plausible swims · 28 meets · 2024-01-05 → 2026-06-26

Personal records

EventCourseBest CutDateMeet
50 Freestyle SCY 22.39 AAA+1.00s to AAAA·+0.10s to Sectionals 2026-02-27 Meet Results for
100 Freestyle SCY 48.51 AAA+1.72s to AAAA·+0.22s to Sectionals 2025-01-01 2025 Southern Senior Championships
200 Freestyle SCY 1:45.51 AAA+3.32s to AAAA·Sectionals ✓+3.92s to Futures 2026-02-27 Meet Results for
500 Freestyle SCY 4:37.50 AAAA·Sectionals ✓+0.41s to Futures 2024-12-05 2024 Gulf Southern Senior Championships
1000 Freestyle SCY 10:39.55 A+5.56s to AA·+42.36s to Sectionals 2024-10-05 2024 October KATY Senior Invite venue
100 Backstroke SCY 2:10.97 +63.18s to B·+75.88s to Sectionals 2024-10-05 2024 October KATY Senior Invitational venue
200 Backstroke SCY 2:05.12 A+3.13s to AA·+2.83s to Sectionals 2024-12-08 2024 Gulf Southern Senior Championships venue
50 Breaststroke SCY 29.82 AA+0.93s to AAA·+0.33s to Sectionals 2024-09-21 2024 Katy Purple Black & White Meet venue
100 Breaststroke SCY 1:00.90 AA+0.41s to AAA·Sectionals ✓+2.91s to Futures 2026-02-27 Meet Results for
200 Breaststroke SCY 2:20.74 A+3.45s to AA·+1.45s to Sectionals 2025-10-04 2025 October KATY Senior Invitational venue
50 Butterfly SCY 25.97 AA+0.98s to AAA·+1.68s to Sectionals 2024-09-21 2024 Katy Purple Black & White Meet venue
100 Butterfly SCY 53.59 AA+0.70s to AAA·+0.90s to Sectionals 2025-01-01 2025 Southern Senior Championships
200 Butterfly SCY 2:12.01 BB+2.82s to A·+13.52s to Sectionals 2024-10-05 2024 October KATY Senior Invite venue
100 Individual Medley SCY 58.30 2024-09-21 2024 Katy Purple Black & White Meet venue
200 Individual Medley SCY 2:01.11 AA+2.22s to AAA·+1.72s to Sectionals 2025-01-01 2025 Southern Senior Championships
400 Individual Medley SCY 4:32.83 A+6.74s to AA·+20.84s to Sectionals 2026-01-02 2026 KATY January Westpark Tollway Classic venue
50 Freestyle LCM 26.39 AA+0.50s to AAA·+0.80s to Sectionals 2026-04-17 2026 Aggieland April Long Course Invitational
100 Freestyle LCM 52.59 AAAA·Winter JNs ✓+0.60s to Jr Nationals 2025-01-03 2025 KATY January Westpark Tollway Classic venue
200 Freestyle LCM 2:01.92 AAA+3.93s to AAAA·+1.03s to Sectionals 2025-07-24 2025 TNAQ Senior Summer Showdown fast pool
400 Freestyle LCM 4:19.54 AAA+7.85s to AAAA·+0.45s to Sectionals 2025-07-25 2025 TNAQ Senior Summer Showdown fast pool
800 Freestyle LCM 9:40.50 A+9.21s to AA·+44.91s to Sectionals 2025-01-01 2025 Texas Senior Circuit I
50 Backstroke LCM 1:08.85 +30.96s to B·+38.66s to Sectionals 2026-06-26 2026 BATS June Invite
100 Backstroke LCM 1:05.13 AA+2.64s to AAA·+0.64s to Sectionals 2026-01-01 Katy Aquatics
200 Backstroke LCM 2:32.80 BB+5.11s to A·+12.11s to Sectionals 2026-04-17 2026 Aggieland April Long Course Invitational
50 Breaststroke LCM 34.96 A+0.57s to AA·+0.77s to Sectionals 2024-07-14 2024 Long Course Gulf Age Group Championships venue
100 Breaststroke LCM 1:12.41 AA+1.82s to AAA·+0.02s to Sectionals 2026-06-26 2026 BATS June Invite
200 Breaststroke LCM 2:32.27 AAA+5.78s to AAAA·Sectionals ✓+3.18s to Futures 2025-01-03 2025 KATY January Westpark Tollway Classic venue
50 Butterfly LCM 27.35 AAA+0.46s to AAAA·Sectionals ✓+1.06s to Futures 2025-07-26 2025 TNAQ Senior Summer Showdown fast pool
100 Butterfly LCM 56.84 AAAA·Futures ✓+0.35s to Winter JNs 2025-01-03 2025 KATY January Westpark Tollway Classic venue
200 Butterfly LCM 2:19.83 AA+4.44s to AAA·+2.44s to Sectionals 2026-06-26 2026 BATS June Invite
200 Individual Medley LCM 2:20.98 AA+2.29s to AAA·+3.29s to Sectionals 2025-07-26 2025 TNAQ Senior Summer Showdown fast pool
400 Individual Medley LCM 5:06.28 AA+10.69s to AAA·+12.39s to Sectionals 2026-05-02 Hosted by Katy Aquatics

Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 16.

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.

IMX / IMR

IMX 15-16 · LCM

4759 points (6/6 events)

EventTime Points
400 FR LCM 4:19.54 900
200 BK LCM 2:32.80 604
200 BR LCM 2:32.27 879
200 FL LCM 2:19.83 781
200 IM LCM 2:20.98 822
400 IM LCM 5:06.28 773

IMR 15-16 · LCM

4313 points (5/5 events)

EventTime Points
200 FR LCM 2:01.92 894
100 BK LCM 1:05.13 762
100 BR LCM 1:12.41 795
100 FL LCM 56.84 1040
200 IM LCM 2:20.98 822

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

PR splits

200 Backstroke SCY 2:05.12

28.80
31.96
32.87
31.49

Front half 60.76s · back half 64.36s

200 Breaststroke SCY 2:20.74

34.36
72.02
31.31
67.41
104.30
140.74

200 Butterfly SCY 2:12.01

28.41
33.12
35.19
35.29

Front half 61.53s · back half 70.48s

100 Individual Medley SCY 58.30

27.15
31.15

Front half 27.15s · back half 31.15s

200 Freestyle LCM 2:01.92 RT 0.65s

28.31
30.91
31.30
31.40

Front half 59.22s · back half 62.70s

400 Freestyle LCM 4:19.54 RT 0.69s

29.00
32.22
33.16
33.34
33.18
33.43
33.45
31.76

Front half 127.72s · back half 131.82s

800 Freestyle LCM 9:40.50 split/total mismatch

449.65
483.74
517.12
548.38
33.18
69.09
106.06
142.81

100 Backstroke LCM 1:05.13

31.42
33.71

Front half 31.42s · back half 33.71s

200 Butterfly LCM 2:19.83 split/total mismatch

33.06
39.27
42.44
41.65
28.42
39.15
41.16
31.10

200 Individual Medley LCM 2:20.98 RT 0.71s

29.70
39.62
39.41
32.25

Front half 69.32s · back half 71.66s

400 Individual Medley LCM 5:06.28

31.55
37.30
42.62
41.63
42.68
43.09
34.75
32.66

Front half 153.10s · back half 153.18s

Reaction time

fastest 0.31s average 0.590s slowest 0.75s 13 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.

50 Freestyle SCY 22.39 10 swims
100 Freestyle SCY 48.51 15 swims
200 Freestyle SCY 1:45.51 11 swims
500 Freestyle SCY 4:37.50 4 swims
1000 Freestyle SCY 10:39.55 3 swims
100 Backstroke SCY 2:10.97 1 swim
200 Backstroke SCY 2:05.12 6 swims
50 Breaststroke SCY 29.82 2 swims
100 Breaststroke SCY 1:00.90 10 swims
200 Breaststroke SCY 2:20.74 10 swims
50 Butterfly SCY 25.97 1 swim
100 Butterfly SCY 53.59 10 swims
200 Butterfly SCY 2:12.01 1 swim
100 Individual Medley SCY 58.30 1 swim
200 Individual Medley SCY 2:01.11 10 swims
400 Individual Medley SCY 4:32.83 4 swims
50 Freestyle LCM 26.39 4 swims
100 Freestyle LCM 52.59 11 swims
200 Freestyle LCM 2:01.92 9 swims
400 Freestyle LCM 4:19.54 6 swims
800 Freestyle LCM 9:40.50 1 swim
50 Backstroke LCM 1:08.85 3 swims
100 Backstroke LCM 1:05.13 9 swims
200 Backstroke LCM 2:32.80 5 swims
50 Breaststroke LCM 34.96 1 swim
100 Breaststroke LCM 1:12.41 8 swims
200 Breaststroke LCM 2:32.27 8 swims
50 Butterfly LCM 27.35 3 swims
100 Butterfly LCM 56.84 8 swims
200 Butterfly LCM 2:19.83 4 swims
200 Individual Medley LCM 2:20.98 9 swims
400 Individual Medley LCM 5:06.28 6 swims