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Zeen Zheng

Age: 15 years old
Age Category: 15-16
Team: Palo Alto Stanford Aquatics | Pacific Swimming

Personal Best

Short course distance

Event Time Age Date Standard Next Standard Palo Alto Stanford Aquatics Pacific Swimming Western Zone USA
Free 50 Y 24.26 15 07/20/2025 BB A: 24.19 (+0.07s | 0.3%) 24 244 1,000+ 1,000+
Free 100 Y 52.11 Analysis 15 07/20/2025 A AA: 50.99 (+1.12s | 2.1%) 20 206 916 1,000+
50 Free
24.85
24.85
100 Free
27.26
52.11
100 Free
52.11
Free 200 Y 1:58.31 Analysis 15 03/01/2025 BB A: 1:56.59 (+1.72s | 1.5%) 25 260 1,000+ 1,000+
50 Free
26.64
26.64
100 Free
30.07
56.71
100 Free
56.71
150 Free
30.86
1:27.57
200 Free
30.74
1:58.31
100 Free
1:01.60
Free 500 Y 5:19.79 Analysis 15 02/01/2025 BB A: 5:15.79 (+4.00s | 1.3%) 17 192 834 1,000+
Free 1000 Y 11:00.80 Analysis 15 11/15/2025 A AA: 10:33.99 (+26.81s | 4.1%) 15 102 383 1,000+
Free 1650 Y 18:24.29 Analysis 15 02/01/2025 BB A: 18:22.79 (+1.50s | 0.1%) 11 101 381 1,000+
50 Free
27.01
27.01
100 Free
30.83
57.84
100 Free
57.84
150 Free
32.12
1:29.96
200 Free
33.33
2:03.29
100 Free
1:05.45
250 Free
32.93
2:36.22
300 Free
33.74
3:09.96
100 Free
1:06.67
350 Free
33.21
3:43.17
400 Free
34.19
4:17.36
100 Free
1:07.40
450 Free
34.09
4:51.45
500 Free
33.93
5:25.38
100 Free
1:08.02
550 Free
34.53
5:59.91
600 Free
33.47
6:33.38
100 Free
1:08.00
650 Free
33.82
7:07.20
700 Free
33.54
7:40.74
100 Free
1:07.36
750 Free
33.71
8:14.45
800 Free
33.76
8:48.21
100 Free
1:07.47
850 Free
33.70
9:21.91
900 Free
34.60
9:56.51
100 Free
1:08.30
950 Free
33.95
10:30.46
1000 Free
34.62
11:05.08
100 Free
1:08.57
1050 Free
33.68
11:38.76
1100 Free
33.89
12:12.65
100 Free
1:07.57
1150 Free
33.99
12:46.64
1200 Free
34.28
13:20.92
100 Free
1:08.27
1250 Free
33.67
13:54.59
1300 Free
33.94
14:28.53
100 Free
1:07.61
1350 Free
35.25
15:03.78
1400 Free
34.57
15:38.35
100 Free
1:09.82
1450 Free
33.46
16:11.81
1500 Free
33.42
16:45.23
100 Free
1:06.88
1550 Free
34.01
17:19.24
1600 Free
32.99
17:52.23
100 Free
1:07.00
1650 Free
32.06
18:24.29
Back 50 Y 28.18 15 04/03/2025 7 118 580 1,000+
Back 100 Y 59.60 Analysis 15 07/20/2025 BB A: 57.89 (+1.71s | 2.9%) 15 167 733 1,000+
50 Back
28.51
28.51
100 Back
31.09
59.60
100 Back
59.60
Back 200 Y 2:13.70 Analysis 15 02/01/2025 BB A: 2:06.59 (+7.11s | 5.3%) 17 165 779 1,000+
50 Back
30.47
30.47
100 Back
33.46
1:03.93
100 Back
1:03.93
150 Back
35.29
1:39.22
200 Back
34.48
2:13.70
100 Back
1:09.77
Breast 50 Y 34.12 15 09/22/2023 21 182 946 1,000+
Breast 100 Y 1:06.20 Analysis 15 04/03/2025 BB A: 1:05.89 (+0.31s | 0.5%) 19 150 655 1,000+
50 Breast
31.52
31.52
100 Breast
34.68
1:06.20
100 Breast
1:06.20
Breast 200 Y 2:23.72 Analysis 15 03/01/2025 BB A: 2:23.19 (+0.53s | 0.4%) 17 121 483 1,000+
50 Breast
31.82
31.82
100 Breast
36.26
1:08.08
100 Breast
1:08.08
150 Breast
37.67
1:45.75
200 Breast
37.97
2:23.72
100 Breast
1:15.64
Fly 50 Y 29.47 15 09/22/2023 35 282 1,000+ 1,000+
Fly 100 Y 57.59 Analysis 15 02/01/2025 A AA: 55.19 (+2.40s | 4.2%) 18 175 734 1,000+
50 Fly
26.80
26.80
100 Fly
30.79
57.59
100 Fly
57.59
Fly 200 Y 2:09.21 Analysis 15 09/20/2025 BB A: 2:08.79 (+0.42s | 0.3%) 12 118 434 1,000+
IM 200 Y 2:09.94 Analysis 15 03/01/2025 BB A: 2:09.39 (+0.55s | 0.4%) 20 189 805 1,000+
IM 400 Y 4:32.74 Analysis 15 01/11/2025 A AA: 4:24.69 (+8.05s | 3.0%) 10 112 434 1,000+
50 Fly
29.15
29.15
100 Fly
33.03
1:02.18
100 Fly
1:02.18
150 Back
35.51
1:37.69
200 Back
34.68
2:12.37
100 Back
1:10.19
250 Breast
38.74
2:51.11
300 Breast
39.12
3:30.23
100 Breast
1:17.86
350 Free
31.34
4:01.57
400 Free
31.17
4:32.74
100 Free
1:02.51

Long course distance

Event Time Age Date Standard Next Standard Palo Alto Stanford Aquatics Pacific Swimming Western Zone USA
Free 50 M 28.94 15 04/26/2025 BB A: 28.19 (+0.75s | 2.6%) 27 293 1,000+ 1,000+
Free 100 M 1:04.40 Analysis 15 07/20/2024 BB A: 1:01.49 (+2.91s | 4.5%) 28 309 1,000+ 1,000+
Free 200 M 2:15.69 Analysis 15 06/27/2025 BB A: 2:14.29 (+1.40s | 1.0%) 13 171 791 1,000+
Free 400 M 4:46.29 Analysis 15 06/27/2025 A AA: 4:34.39 (+11.90s | 4.2%) 12 132 564 1,000+
Free 800 M 10:50.91 Analysis 15 05/27/2023 B BB: 10:44.39 (+6.52s | 1.0%) 10 121 521 1,000+
Free 1500 M 20:40.74 Analysis 15 05/27/2023 B BB: 20:33.39 (+7.35s | 0.6%) 12 109 433 907
50 Free
34.36
34.36
100 Free
39.44
1:13.80
100 Free
1:13.80
150 Free
40.35
1:54.15
200 Free
40.41
2:34.56
100 Free
1:20.76
250 Free
40.18
3:14.74
300 Free
40.47
3:55.21
100 Free
1:20.65
350 Free
39.89
4:35.10
400 Free
40.62
5:15.72
100 Free
1:20.51
450 Free
40.62
5:56.34
500 Free
42.41
6:38.75
100 Free
1:23.03
550 Free
41.45
7:20.20
600 Free
42.00
8:02.20
100 Free
1:23.45
650 Free
43.03
8:45.23
700 Free
41.95
9:27.18
100 Free
1:24.98
750 Free
41.64
10:08.82
800 Free
42.09
10:50.91
100 Free
1:23.73
850 Free
41.62
11:32.53
900 Free
42.42
12:14.95
100 Free
1:24.04
950 Free
41.80
12:56.75
1000 Free
41.90
13:38.65
100 Free
1:23.70
1050 Free
44.11
14:22.76
1100 Free
41.16
15:03.92
100 Free
1:25.27
1150 Free
42.15
15:46.07
1200 Free
42.49
16:28.56
100 Free
1:24.64
1250 Free
43.54
17:12.10
1300 Free
42.48
17:54.58
100 Free
1:26.02
1350 Free
43.60
18:38.18
1400 Free
41.69
19:19.87
100 Free
1:25.29
1450 Free
41.14
20:01.01
1500 Free
39.73
20:40.74
100 Free
1:20.87
Back 50 M 36.93 15 07/22/2023 10 134 906 1,000+
Back 100 M 1:09.87 Analysis 15 05/17/2025 BB A: 1:07.99 (+1.88s | 2.7%) 10 110 519 1,000+
50 Back
33.06
33.06
100 Back
36.81
1:09.87
100 Back
1:09.87
Back 200 M 2:39.89 Analysis 15 06/06/2025 BB A: 2:27.69 (+12.20s | 7.6%) 14 140 693 1,000+
Breast 50 M 39.65 15 05/19/2023 14 113 670 1,000+
Breast 100 M 1:18.94 Analysis 15 06/06/2025 BB A: 1:16.69 (+2.25s | 2.9%) 14 132 568 1,000+
Breast 200 M 2:49.82 Analysis 15 07/11/2025 BB A: 2:46.69 (+3.13s | 1.8%) 9 97 399 921
Fly 50 M 32.29 15 07/27/2023 9 111 698 1,000+
Fly 100 M 1:03.92 Analysis 15 05/17/2025 A AA: 1:03.09 (+0.83s | 1.3%) 10 82 331 836
50 Fly
29.63
29.63
100 Fly
34.29
1:03.92
100 Fly
1:03.92
Fly 200 M 2:22.66 Analysis 15 07/31/2025 A AA: 2:21.09 (+1.57s | 1.1%) 4 41 163 432
IM 200 M 2:24.37 Analysis 15 05/17/2025 AA AAA: 2:18.39 (+5.98s | 4.1%) 5 82 336 814
25 Fly
30.69
30.69
50 Back
38.18
1:08.87
50 IM
1:08.87
75 Breast
41.88
1:50.75
100 Free
33.51
2:24.26
50 IM
1:15.39
200 Free
0.11
2:24.37
50 IM
0.11
IM 400 M 5:16.11 Analysis 15 06/06/2025 A AA: 5:07.79 (+8.32s | 2.6%) 6 83 338 818

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