Swimmer profile
Derek Cheng
MaleOpen / SeniorMetro Area Life TimeNJ · EASTERN
SeasonUSA Swimming season runs Sept – Aug
Event
2015–16
2016–17
2017–18
2018–19
2019–20
2020–21
2021–22
2022–23
2023–24
2024–25
2025–26
50 Free SCY
37.10
30.43
▲ 6.67
27.68
▲ 2.75
25.40
▲ 2.28
23.86
▲ 1.54
22.06
▲ 1.80
21.60
▲ 0.46
21.39
▲ 0.21
21.20
▲ 0.19
21.25
▼ 0.05
21.14
▲ 0.11
100 Free SCY
1:21.83
1:05.36
▲ 16.47
1:00.08
▲ 5.28
53.62
▲ 6.46
50.24
▲ 3.38
48.05
▲ 2.19
47.20
▲ 0.85
46.24
▲ 0.96
45.96
▲ 0.28
46.20
▼ 0.24
46.12
▲ 0.08
200 Free SCY
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2:20.79
2:08.76
▲ 12.03
1:53.95
▲ 14.81
1:50.70
▲ 3.25
1:47.62
▲ 3.08
1:43.73
▲ 3.89
1:40.62
▲ 3.11
1:40.38
▲ 0.24
1:41.68
▼ 1.30
1:40.75
▲ 0.93
500 Free SCY
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6:11.98
5:43.75
▲ 28.23
5:07.06
▲ 36.69
4:59.96
▲ 7.10
4:49.10
▲ 10.86
4:44.73
▲ 4.37
4:44.87
▼ 0.14
4:39.88
▲ 4.99
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1000 Free SCY
—
—
11:34.32
10:47.70
▲ 46.62
10:17.21
▲ 30.49
—
9:56.45
▲ 20.76
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—
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1650 Free SCY
—
—
—
17:52.32
—
16:17.69
▲ 94.63
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—
—
—
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50 Back SCY
41.92
35.88
▲ 6.04
32.45
▲ 3.43
28.75
▲ 3.70
—
26.50
▲ 2.25
—
25.94
▲ 0.56
24.31
▲ 1.63
25.12
▼ 0.81
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100 Back SCY
1:29.25
1:15.55
▲ 13.70
1:09.61
▲ 5.94
1:01.47
▲ 8.14
57.74
▲ 3.73
54.97
▲ 2.77
53.61
▲ 1.36
—
51.97
▲ 1.64
52.61
▼ 0.64
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200 Back SCY
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—
2:25.62
2:09.67
▲ 15.95
2:01.99
▲ 7.68
1:58.40
▲ 3.59
1:56.48
▲ 1.92
1:55.66
▲ 0.82
1:52.50
▲ 3.16
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1:55.46
▼ 2.96
50 Breast SCY
46.15
38.90
▲ 7.25
36.31
▲ 2.59
31.30
▲ 5.01
—
29.69
▲ 1.61
—
28.64
▲ 1.05
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100 Breast SCY
1:35.47
1:23.39
▲ 12.08
1:17.91
▲ 5.48
1:06.74
▲ 11.17
1:04.35
▲ 2.39
1:01.97
▲ 2.38
1:01.47
▲ 0.50
1:02.16
▼ 0.69
1:01.21
▲ 0.95
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200 Breast SCY
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3:06.96
2:46.04
▲ 20.92
2:26.09
▲ 19.95
2:20.55
▲ 5.54
2:17.07
▲ 3.48
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50 Fly SCY
47.14
35.31
▲ 11.83
32.16
▲ 3.15
27.83
▲ 4.33
—
24.69
▲ 3.14
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100 Fly SCY
1:59.28
1:17.88
▲ 41.40
1:09.15
▲ 8.73
1:00.78
▲ 8.37
57.37
▲ 3.41
54.15
▲ 3.22
52.67
▲ 1.48
50.57
▲ 2.10
50.46
▲ 0.11
52.37
▼ 1.91
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200 Fly SCY
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2:13.75
2:04.49
▲ 9.26
2:02.50
▲ 1.99
1:59.06
▲ 3.44
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100 IM SCY
1:35.40
1:12.18
▲ 23.22
1:09.43
▲ 2.75
1:00.58
▲ 8.85
—
55.56
▲ 5.02
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200 IM SCY
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2:35.76
2:25.36
▲ 10.40
2:08.88
▲ 16.48
2:05.23
▲ 3.65
1:59.03
▲ 6.20
1:58.17
▲ 0.86
1:55.32
▲ 2.85
1:54.82
▲ 0.50
1:52.82
▲ 2.00
1:53.00
▼ 0.18
400 IM SCY
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5:06.21
4:35.60
▲ 30.61
4:22.60
▲ 13.00
4:13.28
▲ 9.32
4:16.68
▼ 3.40
4:07.54
▲ 9.14
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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.