Swimmer profile
Preston Chan
Male15-16Long Island Aquatic ClubMR · EASTERN
SeasonUSA Swimming season runs Sept – Aug
Event
2016–17
2017–18
2018–19
2019–20
2020–21
2021–22
2022–23
2023–24
2024–25
2025–26
50 Free LCM
52.52
53.75
▼ 1.23
36.13
▲ 17.62
35.54
▲ 0.59
32.63
▲ 2.91
30.14
▲ 2.49
29.33
▲ 0.81
28.37
▲ 0.96
28.56
▼ 0.19
27.46
▲ 1.10
100 Free LCM
—
1:46.17
1:20.30
▲ 25.87
1:16.75
▲ 3.55
1:09.70
▲ 7.05
1:04.75
▲ 4.95
1:01.89
▲ 2.86
59.75
▲ 2.14
58.68
▲ 1.07
58.17
▲ 0.51
200 Free LCM
—
—
—
2:45.97
2:26.41
▲ 19.56
2:15.77
▲ 10.64
2:10.42
▲ 5.35
2:06.30
▲ 4.12
2:03.94
▲ 2.36
2:04.97
▼ 1.03
400 Free LCM
—
—
—
—
5:03.19
4:39.36
▲ 23.83
4:32.57
▲ 6.79
4:23.35
▲ 9.22
4:17.74
▲ 5.61
4:19.33
▼ 1.59
800 Free LCM
—
—
—
—
—
9:49.37
9:36.74
▲ 12.63
8:55.97
▲ 40.77
8:49.20
▲ 6.77
9:01.53
▼ 12.33
1500 Free LCM
—
—
—
—
—
18:41.41
18:05.79
▲ 35.62
17:18.89
▲ 46.90
16:54.93
▲ 23.96
17:03.01
▼ 8.08
50 Back LCM
1:01.99
57.72
▲ 4.27
46.78
▲ 10.94
—
40.61
▲ 6.17
36.31
▲ 4.30
—
—
—
—
100 Back LCM
—
2:03.78
1:39.53
▲ 24.25
—
1:25.59
▲ 13.94
1:17.76
▲ 7.83
1:15.22
▲ 2.54
1:12.26
▲ 2.96
1:12.44
▼ 0.18
—
200 Back LCM
—
—
—
—
2:58.90
2:46.17
▲ 12.73
2:39.22
▲ 6.95
2:32.20
▲ 7.02
2:34.61
▼ 2.41
—
50 Breast LCM
1:15.42
1:03.82
▲ 11.60
51.98
▲ 11.84
50.15
▲ 1.83
44.17
▲ 5.98
39.96
▲ 4.21
—
—
—
—
100 Breast LCM
—
—
1:49.71
1:45.76
▲ 3.95
1:30.18
▲ 15.58
1:24.45
▲ 5.73
1:24.66
▼ 0.21
1:23.27
▲ 1.39
1:21.75
▲ 1.52
1:22.56
▼ 0.81
200 Breast LCM
—
—
—
—
3:13.54
3:12.01
▲ 1.53
2:54.97
▲ 17.04
2:52.76
▲ 2.21
—
—
50 Fly LCM
—
1:05.92
49.68
▲ 16.24
—
38.33
▲ 11.35
34.77
▲ 3.56
—
—
—
—
100 Fly LCM
—
—
1:44.30
—
1:26.74
▲ 17.56
1:17.82
▲ 8.92
1:16.61
▲ 1.21
1:11.18
▲ 5.43
1:10.78
▲ 0.40
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200 IM LCM
—
—
3:22.51
3:13.40
▲ 9.11
2:49.83
▲ 23.57
2:39.36
▲ 10.47
2:33.58
▲ 5.78
2:29.61
▲ 3.97
2:28.82
▲ 0.79
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400 IM LCM
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—
—
—
5:55.98
5:43.50
▲ 12.48
—
5:25.95
▲ 17.55
5:21.53
▲ 4.42
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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.