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Mark Zhou

Age: 11 years old
Age Category: 11-12
Team: Xtreme Swim Club | New England Swimming

Personal Best

Short course distance

Event Time Age Date Standard Next Standard Xtreme Swim Club New England Swimming Eastern Zone USA
Free 50 Y 29.65 11 06/07/2026 BB A: 28.09 (+1.56s | 5.3%) 3 110 794 1,000+
Free 100 Y 1:03.18 Analysis 11 03/13/2026 BB A: 1:01.29 (+1.89s | 3.0%) 3 65 503 1,000+
50 Free
30.47
30.47
100 Free
32.71
1:03.18
100 Free
1:03.18
Free 200 Y 2:15.72 Analysis 11 01/30/2026 BB A: 2:13.69 (+2.03s | 1.5%) 4 45 324 1,000+
50 Free
31.01
31.01
100 Free
34.31
1:05.32
100 Free
1:05.32
150 Free
35.04
1:40.36
200 Free
35.36
2:15.72
100 Free
1:10.40
Free 500 Y 6:04.46 Analysis 11 01/30/2026 BB A: 5:59.99 (+4.47s | 1.2%) 3 42 298 1,000+
50 Free
32.00
32.00
100 Free
35.94
1:07.95
100 Free
1:07.95
150 Free
36.47
1:44.42
200 Free
36.83
2:21.25
100 Free
1:13.30
250 Free
37.28
2:58.53
300 Free
37.66
3:36.19
100 Free
1:14.94
350 Free
37.99
4:14.18
400 Free
37.17
4:51.35
100 Free
1:15.16
450 Free
37.21
5:28.56
500 Free
35.90
6:04.46
100 Free
1:13.11
Free 1000 Y 12:18.42 Analysis 11 01/30/2026 A AA: 12:05.79 (+12.63s | 1.7%) 3 13 60 200
50 Free
33.03
33.03
100 Free
37.52
1:10.55
100 Free
1:10.55
150 Free
38.24
1:48.79
200 Free
37.43
2:26.22
100 Free
1:15.67
250 Free
37.81
3:04.03
300 Free
37.97
3:42.00
100 Free
1:15.78
350 Free
37.80
4:19.80
400 Free
37.83
4:57.63
100 Free
1:15.63
450 Free
37.03
5:34.66
500 Free
37.34
6:12.00
100 Free
1:14.37
550 Free
37.07
6:49.07
600 Free
37.64
7:26.71
100 Free
1:14.71
650 Free
37.02
8:03.73
700 Free
37.49
8:41.22
100 Free
1:14.51
750 Free
36.68
9:17.90
800 Free
36.78
9:54.68
100 Free
1:13.46
850 Free
36.61
10:31.29
900 Free
36.50
11:07.79
100 Free
1:13.11
950 Free
36.88
11:44.67
1000 Free
33.75
12:18.42
100 Free
1:10.63
Free 1650 Y 20:42.85 Analysis 11 01/09/2026 A AA: 20:05.59 (+37.26s | 3.0%) 3 15 32 146
50 Free
31.82
31.82
100 Free
36.07
1:07.89
100 Free
1:07.89
150 Free
37.28
1:45.17
200 Free
37.67
2:22.84
100 Free
1:14.95
250 Free
38.06
3:00.90
300 Free
38.26
3:39.16
100 Free
1:16.32
350 Free
37.88
4:17.04
400 Free
37.29
4:54.33
100 Free
1:15.17
450 Free
38.50
5:32.83
500 Free
37.94
6:10.77
100 Free
1:16.44
550 Free
38.36
6:49.13
600 Free
37.88
7:27.01
100 Free
1:16.24
650 Free
38.21
8:05.22
700 Free
37.13
8:42.35
100 Free
1:15.34
750 Free
38.44
9:20.79
800 Free
38.69
9:59.48
100 Free
1:17.13
850 Free
38.17
10:37.65
900 Free
37.46
11:15.11
100 Free
1:15.63
950 Free
37.36
11:52.47
1000 Free
36.57
12:29.04
100 Free
1:13.93
1050 Free
39.64
13:08.68
1100 Free
38.84
13:47.52
100 Free
1:18.48
1150 Free
38.92
14:26.44
1200 Free
38.36
15:04.80
100 Free
1:17.28
1250 Free
37.58
15:42.38
1300 Free
38.03
16:20.41
100 Free
1:15.61
1350 Free
38.27
16:58.68
1400 Free
38.09
17:36.77
100 Free
1:16.36
1450 Free
39.01
18:15.78
1500 Free
36.85
18:52.63
100 Free
1:15.86
1550 Free
37.30
19:29.93
1600 Free
37.10
20:07.03
100 Free
1:14.40
1650 Free
35.82
20:42.85
Back 50 Y 38.24 11 10/11/2025 B BB: 35.59 (+2.65s | 6.9%) 2 239 1,000+ 1,000+
Breast 50 Y 37.15 11 03/13/2026 BB A: 36.69 (+0.46s | 1.2%) 2 36 295 927
Breast 100 Y 1:19.43 Analysis 11 03/13/2026 BB A: 1:18.39 (+1.04s | 1.3%) 3 27 231 1,000+
50 Breast
37.88
37.88
100 Breast
41.55
1:19.43
100 Breast
1:19.43
Breast 200 Y 2:51.26 Analysis 11 10/17/2025 BB A: 2:48.39 (+2.87s | 1.7%) 3 20 175 443
50 Breast
39.32
39.32
100 Breast
43.89
1:23.21
100 Breast
1:23.21
150 Breast
45.58
2:08.79
200 Breast
42.47
2:51.26
100 Breast
1:28.05
Fly 50 Y 34.83 11 12/12/2025 B BB: 34.19 (+0.64s | 1.8%) 4 124 887 1,000+
Fly 100 Y 1:18.96 Analysis 11 10/17/2025 B BB: 1:16.09 (+2.87s | 3.6%) 3 83 653 1,000+
50 Fly
36.62
36.62
100 Fly
42.34
1:18.96
100 Fly
1:18.96
IM 100 Y 1:16.11 Analysis 11 12/12/2025 B BB: 1:15.89 (+0.22s | 0.3%) 4 96 698 1,000+
50 IM
37.54
37.54
100 IM
38.57
1:16.11
100 IM
1:16.11
IM 200 Y 2:37.71 Analysis 11 12/12/2025 BB A: 2:32.29 (+5.42s | 3.4%) 4 59 435 1,000+
50 Fly
35.96
35.96
100 Back
42.71
1:18.67
100 IM
1:18.67
150 Breast
44.45
2:03.12
200 Free
34.59
2:37.71
100 IM
1:19.04
IM 400 Y 5:40.01 Analysis 11 12/12/2025 BB A: 5:23.19 (+16.82s | 4.9%) 3 43 190 581
50 Fly
37.70
37.70
100 Fly
45.45
1:23.15
100 Fly
1:23.15
150 Back
44.40
2:07.55
200 Back
45.88
2:53.43
100 Back
1:30.28
250 Breast
44.30
3:37.73
300 Breast
46.30
4:24.03
100 Breast
1:30.60
350 Free
38.86
5:02.89
400 Free
37.12
5:40.01
100 Free
1:15.98

Long course distance

Event Time Age Date Standard Next Standard Xtreme Swim Club New England Swimming Eastern Zone USA
Free 50 M 33.45 11 05/08/2026 BB A: 32.09 (+1.36s | 4.1%) 2 85 268 1,000+
Free 100 M 1:11.95 Analysis 11 06/12/2026 BB A: 1:10.39 (+1.56s | 2.2%) 2 52 182 1,000+
Free 200 M 2:35.41 Analysis 11 06/26/2026 BB A: 2:33.59 (+1.82s | 1.2%) 2 39 133 903
Free 400 M 5:31.41 Analysis 11 06/12/2026 BB A: 5:26.69 (+4.72s | 1.4%) 2 34 122 834
50 Free
35.58
35.58
100 Free
40.49
1:16.07
100 Free
1:16.07
150 Free
42.49
1:58.57
200 Free
42.43
2:41.00
100 Free
1:24.92
250 Free
43.08
3:24.08
300 Free
43.33
4:07.41
100 Free
1:26.41
350 Free
42.61
4:50.02
400 Free
41.39
5:31.41
100 Free
1:24.00
Breast 50 M 41.49 11 06/26/2026 A AA: 39.99 (+1.50s | 3.6%) 1 19 73 521
Breast 100 M 1:31.05 Analysis 11 06/26/2026 A AA: 1:27.19 (+3.86s | 4.2%) 2 20 78 503
Breast 200 M 3:14.65 Analysis 11 06/26/2026 A AA: 3:07.19 (+7.46s | 3.8%) 2 14 54 251
Fly 50 M 39.76 11 05/08/2026 B BB: 38.69 (+1.07s | 2.7%) 2 102 314 1,000+
Fly 100 M 1:30.76 Analysis 11 05/01/2026 B BB: 1:27.29 (+3.47s | 3.8%) 1 64 203 1,000+
50 Fly
41.13
41.13
100 Fly
49.63
1:30.76
100 Fly
1:30.76
IM 200 M 3:03.98 Analysis 11 06/12/2026 BB A: 2:53.69 (+10.29s | 5.6%) 1 62 198 1,000+
50 Fly
40.56
40.56
100 Back
50.09
1:30.65
100 IM
1:30.65
150 Breast
52.25
2:22.90
200 Free
41.08
3:03.98
100 IM
1:33.33
IM 400 M 6:26.74 Analysis 11 05/08/2026 BB A: 6:15.39 (+11.35s | 2.9%) 1 25 64 399

Above are the fastest times that Mark Zhou has achieved in his swimming career. For each event, you can find Mark's best time, the corresponding time standard, as well as how much faster Mark needs to be to reach the next level. The last columns provide Mark rankings at the team and LSC levels. These rankings are based on the Mark's personal best, his current age category, and team; and are calculated from all the meets results.

Disclaimer: This Website is not affiliated with USA Swimming or any Local Swim Committee. The rankings and times displayed on this website are unofficial and should not be viewed as such. We update our information regularly, but we cannot guarantee that the data is accurate, timely, or complete. The only purpose of this website is entertainment. None of the information here should be used for university admission applications.