swimstats

Mark Zhou

Mage 11EZNEMTSCNEXTRM

378 plausible swims · 62 meets · 2023-02-03 → 2026-07-19

Personal records

EventCourseBest CutDateMeet
25 Freestyle SCY 23.29 2023-02-03 2023 NE CRIM Silver Championships
50 Freestyle SCY 29.65 A+0.86s to AA·+7.26s to Sectionals 2026-01-01 2026 ne nssc june bc high meet results
100 Freestyle SCY 1:03.18 A+0.69s to AA·+14.69s to Sectionals 2026-01-01 2026 ne inst cup championship results
200 Freestyle SCY 2:15.72 AA+4.83s to AAA·+29.43s to Sectionals 2026-01-31 2026 NE CS Silver Championshipsfast pool
500 Freestyle SCY 6:04.46 AA+13.87s to AAA·+77.07s to Sectionals 2026-01-30 2026 NE CS Silver Championshipsfast pool
1000 Freestyle SCY 12:18.42 AA+0.83s to AAA·+138.93s to Sectionals 2026-01-31 2026 NE CS Silver Championshipsfast pool
1650 Freestyle SCY 20:42.85 AAA+48.76s to AAAA·+238.86s to Sectionals 2026-01-09 2026 NE NSSC January 9-11 BC Meetvenue
25 Backstroke SCY 27.76 2023-02-03 2023 NE CRIM Silver Championships
50 Backstroke SCY 38.24 B+0.15s to BB·+14.55s to Futures 2025-01-01 2025 spooktacular mit results
100 Backstroke SCY 1:26.78 B+4.09s to BB·+32.29s to Sectionals 2025-01-11 2025 CRA New Year Distance and Specialty Meetvenue
25 Breaststroke SCY 30.28 2023-02-03 2023 NE CRIM Silver Championships
50 Breaststroke SCY 37.15 AA+1.36s to AAA·+10.86s to Futures 2026-01-01 2026 ne inst cup championship results
100 Breaststroke SCY 1:19.43 AA+2.14s to AAA·+17.94s to Sectionals 2026-01-01 2026 ne inst cup championship results
200 Breaststroke SCY 2:51.26 AA+2.97s to AAA·+36.27s to Sectionals 2025-10-17 2025 NE NSSC Beede Halloween Classic
25 Butterfly SCY 26.44 2026-02-19 2026 NE CRA SCY 11-14 Championship
50 Butterfly SCY 34.83 BB+1.14s to A·+11.94s to Futures 2025-12-12 2025 NE NSSC Dec 13-15 Holiday Celebration!
100 Butterfly SCY 1:18.96 BB+3.37s to A·+25.77s to Sectionals 2025-10-17 2025 NE NSSC Beede Halloween Classic
100 Individual Medley SCY 1:16.11 BB+0.82s to A 2025-12-12 2025 NE NSSC Dec 13-15 Holiday Celebration!
200 Individual Medley SCY 2:37.71 A+1.22s to AA·+38.32s to Sectionals 2025-12-14 2025 NE NSSC Dec Holiday Celebration!venue
400 Individual Medley SCY 5:40.01 A+10.22s to AA·+84.92s to Sectionals 2025-12-12 2025 NE NSSC Dec Holiday Celebration!venue
50 Freestyle LCM 33.45 A+0.66s to AA·+7.96s to Sectionals 2026-05-09 2026 NE CRA MIT Team Specialty LC Meetvenue
100 Freestyle LCM 1:11.95 AA+2.96s to AAA·+16.46s to Sectionals 2026-01-01 NE CS 2026 Summer Solstice at Brown University
200 Freestyle LCM 2:35.41 AA+6.32s to AAA·+34.12s to Sectionals 2026-06-28 2026 NE NSSC June 26-28 MIT Invitationalvenue
400 Freestyle LCM 5:31.41 A+1.42s to AA·+73.82s to Sectionals 2026-01-01 NE CS 2026 Summer Solstice at Brown University
800 Freestyle LCM 10:51.84 AAA+16.85s to AAAA·+113.45s to Sectionals 2026-07-17 2026 NE MST/ESC LCM 12 & Under Championshipvenue
1500 Freestyle LCM 20:46.77 AAA+13.48s to AAAA·+207.78s to Sectionals 2026-07-19 2026 NE MST/ESC LCM 12 & Under Championshipvenue
50 Backstroke LCM 45.14 B+1.15s to BB·+17.25s to Futures 2025-07-27 2025 NE CRA July LC P/Fand Specialty Meetvenue
100 Backstroke LCM 1:35.18 BB+6.99s to A·+33.19s to Sectionals 2025-06-08 2025 NE CRIM JUNE TEAM SPECIATYvenue
50 Breaststroke LCM 41.49 AA+0.70s to AAA·+10.60s to Futures 2026-06-27 2026 NE NSSC June 26-28 MIT Invitationalvenue
100 Breaststroke LCM 1:30.21 AAA+4.32s to AAAA·+20.52s to Sectionals 2026-07-17 2026 NE MST/ESC LCM 12 & Under Championshipvenue
200 Breaststroke LCM 3:14.17 AAA+8.38s to AAAA·+41.58s to Sectionals 2026-07-19 2026 NE MST/ESC LCM 12 & Under Championshipvenue
50 Butterfly LCM 39.76 BB+1.77s to A·+13.47s to Futures 2026-05-10 2026 NE CRA MIT Team Specialty LC Meetvenue
100 Butterfly LCM 1:30.76 BB+4.27s to A·+30.57s to Sectionals 2026-01-01 2026 ne cs spring fling results
200 Individual Medley LCM 3:03.98 A+4.79s to AA·+47.79s to Sectionals 2026-01-01 NE CS 2026 Summer Solstice at Brown University
400 Individual Medley LCM 6:26.74 A+3.45s to AA·+96.85s to Sectionals 2026-05-08 2026 NE CRA MIT Team Specialty LC Meetvenue

Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 11.

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 30.44 flying 200 Free Relay (leg 4) 2025-02-15 2025 NE UVAC 10 & Under Champs
100 Freestyle SCY 1:10.95 flat 400 Free Relay 2025-02-14 2025 NE UVAC 10 & Under Champs
50 Breaststroke SCY 39.98 flying 200 Medley Relay (leg 2) 2025-02-15 2025 NE UVAC 10 & Under Champs
100 Freestyle LCM 1:18.83 flat 400 Free Relay 2025-07-12 2025 NE CS LCM 10 & U Champs
100 Freestyle LCM 1:16.12 flying 400 Free Relay (leg 4) 2025-07-13 2025 NE CS LCM 10 & U Champs
100 Breaststroke LCM 1:37.37 flying 400 Medley Relay (leg 2) 2025-08-07 2025 EZ LC Age Group Championship

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

2680 points (5/5 events)

EventTime Points
400 FR LCM 5:31.41 641
100 BK LCM 1:35.18 404
100 BR LCM 1:30.21 671
100 FL LCM 1:30.76 416
200 IM LCM 3:03.98 548

IMR 11-12 · LCM

2670 points (5/5 events)

EventTime Points
200 FR LCM 2:35.41 646
50 BK LCM 45.14 376
50 BR LCM 41.49 658
50 FL LCM 39.76 442
200 IM LCM 3:03.98 548

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

PR splits

100 Freestyle SCY 1:03.18 split/total mismatch

30.47
2.24

Front half 30.47s · back half 32.71s

200 Freestyle SCY 2:15.72

31.01
34.31
35.04
35.36

Front half 65.32s · back half 70.40s

500 Freestyle SCY 6:04.46

32.01
35.94
36.47
36.83
37.28
37.66
37.99
37.17
37.21
35.90

Front half 178.53s · back half 185.93s

1000 Freestyle SCY 12:18.42

33.03
37.52
38.24
37.43
37.81
37.97
37.80
37.83
37.03
37.34
37.07
37.64
37.02
37.49
36.68
36.78
36.61
36.50
36.88
33.75

Front half 372.00s · back half 366.42s

1650 Freestyle SCY 20:42.85

31.82
36.07
37.28
37.67
38.06
38.26
37.88
37.29
38.50
37.94
38.36
37.88
38.21
37.13
38.44
38.69
38.17
37.46
37.36
36.57
39.64
38.84
38.92
38.36
37.58
38.03
38.27
38.09
39.01
36.85
37.30
37.10
35.82

100 Backstroke SCY 1:26.78

42.55
44.23

Front half 42.55s · back half 44.23s

100 Breaststroke SCY 1:19.43 split/total mismatch

37.88
3.67

Front half 37.88s · back half 41.55s

200 Breaststroke SCY 2:51.26 split/total mismatch

39.32
43.89
45.58
42.47

100 Butterfly SCY 1:18.96 split/total mismatch

36.62
5.72

Front half 36.62s · back half 42.34s

100 Individual Medley SCY 1:16.11 split/total mismatch

37.54
1.03

Front half 37.54s · back half 38.57s

200 Individual Medley SCY 2:37.71

35.96
42.71
44.45
34.59

Front half 78.67s · back half 79.04s

400 Individual Medley SCY 5:40.01

37.70
45.45
44.40
45.88
44.30
46.30
38.86
37.12

Front half 173.43s · back half 166.58s

100 Freestyle LCM 1:11.95 split/total mismatch

34.06
3.83

Front half 34.06s · back half 37.89s

200 Freestyle LCM 2:35.41

75.06
80.35

Front half 75.06s · back half 80.35s

400 Freestyle LCM 5:31.41 split/total mismatch

35.58
40.50
42.49
42.43
43.08
43.33
42.61
41.39

800 Freestyle LCM 10:51.84

77.74
83.61
84.11
83.54
82.38
81.08
80.37
79.01

Front half 329.00s · back half 322.84s

1500 Freestyle LCM 20:46.77

79.32
83.61
84.80
84.07
83.74
83.99
84.97
83.25
84.18
83.88
83.36
83.82
83.20
82.45
78.13

100 Backstroke LCM 1:35.18

46.72
48.46

Front half 46.72s · back half 48.46s

200 Breaststroke LCM 3:14.17

93.47
100.70

Front half 93.47s · back half 100.70s

100 Butterfly LCM 1:30.76 split/total mismatch

41.13
8.50

Front half 41.13s · back half 49.63s

200 Individual Medley LCM 3:03.98 split/total mismatch

40.56
50.09
52.25
41.08

400 Individual Medley LCM 6:26.74

92.90
102.96
103.12
87.76

Front half 195.86s · back half 190.88s

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 23.29 1 swim
50 Freestyle SCY 29.65 14 swims
100 Freestyle SCY 1:03.18 21 swims
200 Freestyle SCY 2:15.72 16 swims
500 Freestyle SCY 6:04.46 10 swims
1000 Freestyle SCY 12:18.42 3 swims
1650 Freestyle SCY 20:42.85 4 swims
25 Backstroke SCY 27.76 1 swim
50 Backstroke SCY 38.24 10 swims
100 Backstroke SCY 1:26.78 3 swims
25 Breaststroke SCY 30.28 1 swim
50 Breaststroke SCY 37.15 28 swims
100 Breaststroke SCY 1:19.43 29 swims
200 Breaststroke SCY 2:51.26 10 swims
25 Butterfly SCY 26.44 2 swims
50 Butterfly SCY 34.83 9 swims
100 Butterfly SCY 1:18.96 7 swims
100 Individual Medley SCY 1:16.11 13 swims
200 Individual Medley SCY 2:37.71 11 swims
400 Individual Medley SCY 5:40.01 2 swims
50 Freestyle LCM 33.45 20 swims
100 Freestyle LCM 1:11.95 25 swims
200 Freestyle LCM 2:35.41 15 swims
400 Freestyle LCM 5:31.41 11 swims
800 Freestyle LCM 10:51.84 1 swim
1500 Freestyle LCM 20:46.77 1 swim
50 Backstroke LCM 45.14 8 swims
100 Backstroke LCM 1:35.18 5 swims
50 Breaststroke LCM 41.49 27 swims
100 Breaststroke LCM 1:30.21 27 swims
200 Breaststroke LCM 3:14.17 8 swims
50 Butterfly LCM 39.76 11 swims
100 Butterfly LCM 1:30.76 10 swims
200 Individual Medley LCM 3:03.98 13 swims
400 Individual Medley LCM 6:26.74 1 swim