Swimmer profile
Zachary Zeng
Male10 & UnderWaterloo SwimmingST · SOUTHERN
SeasonUSA Swimming season runs Sept – Aug
Event
2022–23
2023–24
2024–25
2025–26
50 Free LCM
48.50
41.93
▲ 6.57
34.68
▲ 7.25
31.70
▲ 2.98
100 Free LCM
—
1:31.65
1:21.13
▲ 10.52
1:09.97
▲ 11.16
200 Free LCM
—
3:17.09
3:00.53
▲ 16.56
2:39.92
▲ 20.61
400 Free LCM
—
—
—
5:48.98
50 Back LCM
51.98
44.82
▲ 7.16
40.40
▲ 4.42
38.01
▲ 2.39
100 Back LCM
1:53.37
1:46.10
▲ 7.27
1:28.50
▲ 17.60
1:24.33
▲ 4.17
50 Breast LCM
59.64
58.25
▲ 1.39
47.97
▲ 10.28
43.07
▲ 4.90
100 Breast LCM
2:12.16
1:54.46
▲ 17.70
1:40.48
▲ 13.98
1:35.59
▲ 4.89
50 Fly LCM
1:00.26
55.51
▲ 4.75
37.54
▲ 17.97
35.39
▲ 2.15
100 Fly LCM
—
—
1:38.07
1:25.25
▲ 12.82
200 IM LCM
—
3:43.23
3:23.34
▲ 19.89
2:56.08
▲ 27.26
400 IM LCM
—
—
—
6:36.71
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.