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
50 Free LCM
36.24
31.87
▲ 4.37
30.31
▲ 1.56
27.27
▲ 3.04
—
24.84
▲ 2.43
24.37
▲ 0.47
24.22
▲ 0.15
24.34
▼ 0.12
24.87
▼ 0.53
100 Free LCM
—
1:13.30
1:06.69
▲ 6.61
1:00.68
▲ 6.01
—
55.45
▲ 5.23
53.77
▲ 1.68
52.78
▲ 0.99
52.99
▼ 0.21
53.52
▼ 0.53
200 Free LCM
—
2:36.27
2:24.20
▲ 12.07
2:13.03
▲ 11.17
—
2:00.20
▲ 12.83
1:58.59
▲ 1.61
1:56.62
▲ 1.97
1:57.42
▼ 0.80
1:58.69
▼ 1.27
400 Free LCM
—
5:19.41
4:54.62
▲ 24.79
4:37.15
▲ 17.47
4:30.60
▲ 6.55
—
4:13.60
▲ 17.00
4:17.79
▼ 4.19
—
—
800 Free LCM
—
—
10:12.99
9:29.97
▲ 43.02
—
—
—
—
—
—
1500 Free LCM
—
—
19:44.05
18:06.29
▲ 97.76
—
17:07.12
▲ 59.17
—
—
—
—
50 Back LCM
44.58
39.39
▲ 5.19
37.39
▲ 2.00
32.14
▲ 5.25
—
—
—
—
29.83
▲ 2.31
—
100 Back LCM
1:35.92
1:27.68
▲ 8.24
1:19.07
▲ 8.61
1:09.56
▲ 9.51
—
—
1:02.54
▲ 7.02
1:01.03
▲ 1.51
—
—
200 Back LCM
—
3:01.42
2:49.55
▲ 11.87
2:29.59
▲ 19.96
2:24.36
▲ 5.23
—
—
—
—
—
50 Breast LCM
45.81
44.03
▲ 1.78
37.57
▲ 6.46
36.50
▲ 1.07
—
—
—
—
—
—
100 Breast LCM
—
1:36.42
1:21.63
▲ 14.79
1:17.87
▲ 3.76
—
—
—
—
—
—
200 Breast LCM
3:44.46
3:17.48
▲ 26.98
2:59.53
▲ 17.95
2:49.45
▲ 10.08
—
—
—
—
—
—
50 Fly LCM
48.37
38.06
▲ 10.31
34.59
▲ 3.47
31.27
▲ 3.32
—
—
—
28.03
▲ 3.24
28.14
▼ 0.11
—
100 Fly LCM
—
1:29.93
1:17.91
▲ 12.02
1:09.92
▲ 7.99
—
—
1:00.96
▲ 8.96
59.38
▲ 1.58
—
—
200 Fly LCM
—
—
—
2:34.41
—
—
—
—
—
—
200 IM LCM
3:22.38
2:55.02
▲ 27.36
2:37.14
▲ 17.88
2:28.22
▲ 8.92
—
—
2:16.57
▲ 11.65
2:15.36
▲ 1.21
—
—
400 IM LCM
—
6:09.13
5:33.54
▲ 35.59
5:10.29
▲ 23.25
—
4:53.49
▲ 16.80
4:53.03
▲ 0.46
—
—
—
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.