Swimmer profile
Zeen Zheng
Male15-16Palo Alto Stanford AquaticsPC · WESTERN
SeasonUSA Swimming season runs Sept – Aug
Event
2021–22
2022–23
2023–24
2024–25
50 Free LCM
34.63
31.16
▲ 3.47
29.97
▲ 1.19
28.74
▲ 1.23
100 Free LCM
1:16.26
1:08.89
▲ 7.37
1:04.40
▲ 4.49
1:02.26
▲ 2.14
200 Free LCM
2:42.86
2:27.78
▲ 15.08
2:25.18
▲ 2.60
2:15.69
▲ 9.49
400 Free LCM
5:56.70
5:13.34
▲ 43.36
5:03.96
▲ 9.38
4:46.29
▲ 17.67
800 Free LCM
—
10:50.91
—
—
1500 Free LCM
—
20:40.74
—
—
50 Back LCM
48.19
36.93
▲ 11.26
—
—
100 Back LCM
1:38.26
1:19.93
▲ 18.33
1:13.30
▲ 6.63
1:15.25
▼ 1.95
200 Back LCM
3:38.83
2:48.19
▲ 50.64
2:40.42
▲ 7.77
2:39.89
▲ 0.53
50 Breast LCM
47.10
39.65
▲ 7.45
—
37.33
▲ 2.32
100 Breast LCM
1:38.73
1:24.59
▲ 14.14
1:20.80
▲ 3.79
1:18.94
▲ 1.86
200 Breast LCM
3:23.72
2:58.88
▲ 24.84
2:54.39
▲ 4.49
2:49.82
▲ 4.57
50 Fly LCM
44.10
32.29
▲ 11.81
—
29.39
▲ 2.90
100 Fly LCM
1:38.14
1:12.32
▲ 25.82
1:06.21
▲ 6.11
1:04.37
▲ 1.84
200 Fly LCM
3:23.79
2:35.59
▲ 48.20
2:30.34
▲ 5.25
2:22.66
▲ 7.68
200 IM LCM
3:19.90
2:39.21
▲ 40.69
2:32.30
▲ 6.91
2:31.23
▲ 1.07
400 IM LCM
—
5:35.35
5:19.50
▲ 15.85
5:16.11
▲ 3.39
Improvement<0.5s0.5–2s2–5s5s+Slower
📊 All Attempts by Event
Chronological history of every recorded swim. Click an event to expand its attempt list.