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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%) 25 243 1,000+ 1,000+
Free 100 Y 52.11 Analysis 15 07/20/2025 A AA: 50.99 (+1.12s | 2.1%) 23 205 945 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%) 28 260 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%) 18 187 828 1,000+
Free 1000 Y 11:00.80 Analysis 15 11/15/2025 A AA: 10:33.99 (+26.81s | 4.1%) 17 104 430 1,000+
Free 1650 Y 18:24.29 Analysis 15 02/01/2025 BB A: 18:22.79 (+1.50s | 0.1%) 12 99 395 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 6 114 580 1,000+
Back 100 Y 59.60 Analysis 15 07/20/2025 BB A: 57.89 (+1.71s | 2.9%) 16 169 753 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%) 17 170 808 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 20 191 920 1,000+
Breast 100 Y 1:06.20 Analysis 15 04/03/2025 BB A: 1:05.89 (+0.31s | 0.5%) 21 156 660 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%) 18 129 494 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 35 298 1,000+ 1,000+
Fly 100 Y 57.59 Analysis 15 02/01/2025 A AA: 55.19 (+2.40s | 4.2%) 18 180 761 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%) 13 120 455 1,000+
IM 200 Y 2:09.94 Analysis 15 03/01/2025 BB A: 2:09.39 (+0.55s | 0.4%) 22 187 817 1,000+
IM 400 Y 4:32.74 Analysis 15 01/11/2025 A AA: 4:24.69 (+8.05s | 3.0%) 12 114 452 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%) 24 276 1,000+ 1,000+
Free 100 M 1:04.40 Analysis 15 07/20/2024 BB A: 1:01.49 (+2.91s | 4.5%) 28 300 1,000+ 1,000+
Free 200 M 2:15.69 Analysis 15 06/27/2025 BB A: 2:14.29 (+1.40s | 1.0%) 13 170 768 1,000+
Free 400 M 4:46.29 Analysis 15 06/27/2025 A AA: 4:34.39 (+11.90s | 4.2%) 12 128 550 1,000+
Free 800 M 10:50.91 Analysis 15 05/27/2023 B BB: 10:44.39 (+6.52s | 1.0%) 12 117 510 1,000+
Free 1500 M 20:40.74 Analysis 15 05/27/2023 B BB: 20:33.39 (+7.35s | 0.6%) 13 103 426 837
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 9 117 779 1,000+
Back 100 M 1:09.87 Analysis 15 05/17/2025 BB A: 1:07.99 (+1.88s | 2.7%) 10 110 512 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%) 13 138 675 1,000+
Breast 50 M 39.65 15 05/19/2023 11 84 518 1,000+
Breast 100 M 1:18.94 Analysis 15 06/06/2025 BB A: 1:16.69 (+2.25s | 2.9%) 12 125 516 1,000+
Breast 200 M 2:49.82 Analysis 15 07/11/2025 BB A: 2:46.69 (+3.13s | 1.8%) 7 95 377 806
Fly 50 M 32.29 15 07/27/2023 7 91 534 1,000+
Fly 100 M 1:03.92 Analysis 15 05/17/2025 A AA: 1:03.09 (+0.83s | 1.3%) 10 73 314 723
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 43 172 392
IM 200 M 2:24.37 Analysis 15 05/17/2025 AA AAA: 2:18.39 (+5.98s | 4.1%) 5 82 324 715
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%) 7 85 333 709

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.