Swimmer profile
Layna Chang
Female13-14Milpitas Aquatic ClubPC · WESTERN
SeasonUSA Swimming season runs Sept – Aug
Event
2021–22
2022–23
2023–24
2024–25
2025–26
50 Free SCY
34.26
31.70
▲ 2.56
28.91
▲ 2.79
28.67
▲ 0.24
28.05
▲ 0.62
100 Free SCY
1:16.01
1:11.08
▲ 4.93
1:04.34
▲ 6.74
1:00.59
▲ 3.75
1:00.22
▲ 0.37
200 Free SCY
—
2:39.12
2:22.02
▲ 17.10
2:18.58
▲ 3.44
—
500 Free SCY
—
—
6:28.44
5:57.77
▲ 30.67
6:14.61
▼ 16.84
50 Back SCY
39.68
37.70
▲ 1.98
35.06
▲ 2.64
—
34.00
▲ 1.06
100 Back SCY
1:29.19
—
1:14.22
▲ 14.97
1:12.34
▲ 1.88
1:09.53
▲ 2.81
200 Back SCY
—
2:57.29
2:42.53
▲ 14.76
—
2:34.51
▲ 8.02
50 Breast SCY
45.88
42.11
▲ 3.77
37.10
▲ 5.01
—
33.95
▲ 3.15
100 Breast SCY
1:36.56
1:27.28
▲ 9.28
1:19.46
▲ 7.82
1:15.24
▲ 4.22
1:14.40
▲ 0.84
200 Breast SCY
—
3:02.58
2:45.09
▲ 17.49
2:40.18
▲ 4.91
2:34.24
▲ 5.94
50 Fly SCY
43.44
37.20
▲ 6.24
33.33
▲ 3.87
—
—
100 Fly SCY
—
—
—
1:09.99
1:09.54
▲ 0.45
100 IM SCY
1:27.29
1:19.06
▲ 8.23
1:12.02
▲ 7.04
—
1:09.23
▲ 2.79
200 IM SCY
—
2:45.05
2:35.53
▲ 9.52
2:29.60
▲ 5.93
2:28.77
▲ 0.83
400 IM SCY
—
—
—
5:20.11
5:19.03
▲ 1.08
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.