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Zachary Zeng

Age: 10 years old
Age Category: 10 & under
Team: Waterloo Swimming | South Texas Swimming

Personal Best

Short course distance

Event Time Age Date Standard Next Standard Waterloo Swimming South Texas Swimming Southern Zone USA
Free 50 Y 27.95 10 10/16/2026 AAA AAAA: 27.49 (+0.46s | 1.6%) Rankings Rankings Rankings Rankings
Free 100 Y 1:02.63 Analysis 10 10/16/2026 AAA AAAA: 1:00.69 (+1.94s | 3.1%) Rankings Rankings Rankings Rankings
50 Free
30.13
30.13
100 Free
32.50
1:02.63
100 Free
1:02.63
Free 200 Y 2:20.17 Analysis 10 10/31/2026 AA AAA: 2:18.99 (+1.18s | 0.8%) Rankings Rankings Rankings Rankings
50 Free
32.29
32.29
100 Free
36.00
1:08.29
100 Free
1:08.29
150 Free
36.41
1:44.70
200 Free
35.47
2:20.17
100 Free
1:11.88
Free 500 Y 6:32.68 Analysis 10 10/16/2026 A AA: 6:26.59 (+6.09s | 1.6%) Rankings Rankings Rankings Rankings
50 Free
34.79
34.79
100 Free
39.81
1:14.60
100 Free
1:14.60
150 Free
40.30
1:54.90
200 Free
40.81
2:35.71
100 Free
1:21.11
250 Free
40.50
3:16.21
300 Free
40.03
3:56.25
100 Free
1:20.54
350 Free
41.58
4:37.83
400 Free
40.51
5:18.34
100 Free
1:22.09
450 Free
38.40
5:56.74
500 Free
35.94
6:32.68
100 Free
1:14.34
Back 50 Y 33.07 10 10/16/2026 AAA AAAA: 32.19 (+0.88s | 2.7%) Rankings Rankings Rankings Rankings
Back 100 Y 1:10.86 Analysis 10 10/16/2026 AAA AAAA: 1:08.99 (+1.87s | 2.6%) Rankings Rankings Rankings Rankings
50 Back
35.04
35.04
100 Back
35.82
1:10.86
100 Back
1:10.86
Breast 50 Y 36.80 10 09/26/2026 AAA AAAA: 36.39 (+0.41s | 1.1%) Rankings Rankings Rankings Rankings
Breast 100 Y 1:21.42 Analysis 10 10/16/2026 AAA AAAA: 1:18.79 (+2.63s | 3.2%) Rankings Rankings Rankings Rankings
50 Breast
39.64
39.64
100 Breast
41.78
1:21.42
100 Breast
1:21.42
Fly 50 Y 31.03 10 09/20/2026 AAA AAAA: 30.79 (+0.24s | 0.8%) Rankings Rankings Rankings Rankings
Fly 100 Y 1:14.28 Analysis 10 09/20/2026 AAA AAAA: 1:09.79 (+4.49s | 6.0%) Rankings Rankings Rankings Rankings
IM 100 Y 1:10.78 Analysis 10 10/16/2026 AAA AAAA: 1:09.79 (+0.99s | 1.4%) Rankings Rankings Rankings Rankings
50 IM
32.52
32.52
100 IM
38.26
1:10.78
100 IM
1:10.78
IM 200 Y 2:35.90 Analysis 10 09/20/2026 AAA AAAA: 2:30.89 (+5.01s | 3.2%) Rankings Rankings Rankings Rankings
IM 400 Y 5:40.27 Analysis 10 10/31/2026 Rankings Rankings Rankings Rankings
50 Fly
36.98
36.98
100 Fly
45.54
1:22.52
100 Fly
1:22.52
150 Back
41.81
2:04.33
200 Back
41.58
2:45.91
100 Back
1:23.39
250 Breast
50.17
3:36.08
300 Breast
48.36
4:24.44
100 Breast
1:38.53
350 Free
39.25
5:03.69
400 Free
36.58
5:40.27
100 Free
1:15.83

Long course distance

Event Time Age Date Standard Next Standard Waterloo Swimming South Texas Swimming Southern Zone USA
Free 50 M 31.70 10 06/19/2026 AAA AAAA: 31.59 (+0.11s | 0.3%) Rankings Rankings Rankings Rankings
Free 100 M 1:09.97 Analysis 10 06/19/2026 AAA AAAA: 1:09.79 (+0.18s | 0.3%) Rankings Rankings Rankings Rankings
50 Free
33.02
33.02
100 Free
36.95
1:09.97
100 Free
1:09.97
Free 200 M 2:39.92 Analysis 10 06/19/2026 AA AAA: 2:38.89 (+1.03s | 0.6%) Rankings Rankings Rankings Rankings
50 Free
36.73
36.73
100 Free
41.43
1:18.16
100 Free
1:18.16
150 Free
42.26
2:00.42
200 Free
39.50
2:39.92
100 Free
1:21.76
Free 400 M 5:48.98 Analysis 10 05/22/2026 AA AAA: 5:36.09 (+12.89s | 3.7%) Rankings Rankings Rankings Rankings
50 Free
37.43
37.43
100 Free
43.84
1:21.27
100 Free
1:21.27
150 Free
44.23
2:05.50
200 Free
45.05
2:50.55
100 Free
1:29.28
250 Free
45.04
3:35.59
300 Free
45.25
4:20.84
100 Free
1:30.29
350 Free
45.20
5:06.04
400 Free
42.94
5:48.98
100 Free
1:28.14
Back 50 M 38.01 10 06/19/2026 AAA AAAA: 36.99 (+1.02s | 2.7%) Rankings Rankings Rankings Rankings
Back 100 M 1:24.33 Analysis 10 07/09/2026 AA AAA: 1:24.09 (+0.24s | 0.3%) Rankings Rankings Rankings Rankings
Breast 50 M 43.07 10 07/09/2026 AAA AAAA: 41.49 (+1.58s | 3.7%) Rankings Rankings Rankings Rankings
Breast 100 M 1:35.59 Analysis 10 05/22/2026 AAA AAAA: 1:31.69 (+3.90s | 4.1%) Rankings Rankings Rankings Rankings
50 Breast
46.66
46.66
100 Breast
48.93
1:35.59
100 Breast
1:35.59
Fly 50 M 35.39 10 06/19/2026 AAA AAAA: 34.69 (+0.70s | 2.0%) Rankings Rankings Rankings Rankings
Fly 100 M 1:25.25 Analysis 10 07/09/2026 AA AAA: 1:25.09 (+0.16s | 0.2%) Rankings Rankings Rankings Rankings
IM 200 M 2:56.08 Analysis 10 07/09/2026 AAA AAAA: 2:52.19 (+3.89s | 2.2%) Rankings Rankings Rankings Rankings
IM 400 M 6:36.71 Analysis 10 06/06/2026 Rankings Rankings Rankings Rankings
50 Fly
43.02
43.02
100 Fly
53.48
1:36.50
100 Fly
1:36.50
150 Back
47.84
2:24.34
200 Back
49.84
3:14.18
100 Back
1:37.68
250 Breast
56.35
4:10.53
300 Breast
56.81
5:07.34
100 Breast
1:53.16
350 Free
45.92
5:53.26
400 Free
43.45
6:36.71
100 Free
1:29.37

Above are the fastest times that Zachary Zeng has achieved in his swimming career. For each event, you can find Zachary's best time, the corresponding time standard, as well as how much faster Zachary needs to be to reach the next level. The last columns provide Zachary rankings at the team and LSC levels. These rankings are based on the Zachary'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.