Swimmer profile
Isaac Chang
Male17-18Beach Cities AlphaSCS · WESTERN
SeasonUSA Swimming season runs Sept – Aug
Event
2016–17
2017–18
2018–19
2020–21
2021–22
2022–23
2023–24
2024–25
2025–26
50 Free LCM
39.49
34.71
▲ 4.78
31.00
▲ 3.71
—
26.72
▲ 4.28
26.06
▲ 0.66
26.07
▼ 0.01
25.44
▲ 0.63
—
100 Free LCM
—
1:17.72
1:09.37
▲ 8.35
59.26
▲ 10.11
57.42
▲ 1.84
57.15
▲ 0.27
55.44
▲ 1.71
55.62
▼ 0.18
—
200 Free LCM
—
—
2:45.83
2:14.57
▲ 31.26
2:09.28
▲ 5.29
2:05.76
▲ 3.52
2:06.24
▼ 0.48
2:03.91
▲ 2.33
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400 Free LCM
—
—
—
—
4:37.79
4:34.79
▲ 3.00
4:25.24
▲ 9.55
—
—
50 Back LCM
51.07
41.42
▲ 9.65
—
—
—
—
—
—
—
100 Back LCM
—
—
—
1:18.56
1:13.66
▲ 4.90
1:08.25
▲ 5.41
—
1:02.53
▲ 5.72
—
200 Back LCM
—
—
—
—
2:45.30
—
—
—
—
50 Breast LCM
—
46.12
43.20
▲ 2.92
35.49
▲ 7.71
—
33.66
▲ 1.83
31.91
▲ 1.75
30.47
▲ 1.44
—
100 Breast LCM
—
1:42.04
1:35.92
▲ 6.12
1:16.80
▲ 19.12
1:15.37
▲ 1.43
1:10.57
▲ 4.80
1:07.66
▲ 2.91
1:05.12
▲ 2.54
1:06.99
▼ 1.87
200 Breast LCM
—
—
—
2:47.14
2:48.79
▼ 1.65
2:41.35
▲ 7.44
2:30.46
▲ 10.89
2:22.10
▲ 8.36
2:31.28
▼ 9.18
50 Fly LCM
—
41.12
35.03
▲ 6.09
—
—
—
—
—
26.90
▲ 8.13
100 Fly LCM
—
—
1:21.95
1:04.12
▲ 17.83
1:02.79
▲ 1.33
1:00.76
▲ 2.03
58.82
▲ 1.94
57.48
▲ 1.34
56.89
▲ 0.59
200 Fly LCM
—
—
—
—
2:24.20
2:16.98
▲ 7.22
2:14.14
▲ 2.84
—
—
200 IM LCM
—
—
—
2:27.95
2:25.03
▲ 2.92
2:20.92
▲ 4.11
2:13.95
▲ 6.97
2:14.01
▼ 0.06
—
400 IM LCM
—
—
—
—
5:11.33
—
4:51.99
▲ 19.34
—
—
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.