Swimmer profile
Marvin Qian
Male13-14Waterloo SwimmingST · SOUTHERN
SeasonUSA Swimming season runs Sept – Aug
Event
2018–19
2019–20
2020–21
2021–22
2022–23
2023–24
2024–25
2025–26
50 Free LCM
42.46
38.94
▲ 3.52
34.26
▲ 4.68
32.81
▲ 1.45
30.93
▲ 1.88
29.80
▲ 1.13
27.77
▲ 2.03
26.06
▲ 1.71
100 Free LCM
—
—
1:14.70
1:10.72
▲ 3.98
1:06.71
▲ 4.01
1:04.05
▲ 2.66
1:01.72
▲ 2.33
58.03
▲ 3.69
200 Free LCM
—
—
2:39.45
2:27.48
▲ 11.97
2:24.73
▲ 2.75
2:21.21
▲ 3.52
2:15.41
▲ 5.80
2:08.13
▲ 7.28
400 Free LCM
—
—
5:27.40
5:10.74
▲ 16.66
5:00.39
▲ 10.35
4:58.32
▲ 2.07
4:48.09
▲ 10.23
4:44.18
▲ 3.91
1500 Free LCM
—
—
—
22:10.95
—
—
—
—
50 Back LCM
48.82
—
38.03
▲ 10.79
38.16
▼ 0.13
33.87
▲ 4.29
33.38
▲ 0.49
—
30.05
▲ 3.33
100 Back LCM
—
1:37.23
1:22.52
▲ 14.71
1:19.15
▲ 3.37
1:11.59
▲ 7.56
1:09.06
▲ 2.53
1:07.30
▲ 1.76
1:04.27
▲ 3.03
200 Back LCM
—
—
—
2:52.00
2:34.32
▲ 17.68
2:28.22
▲ 6.10
2:25.48
▲ 2.74
2:22.33
▲ 3.15
50 Breast LCM
1:00.46
—
51.78
▲ 8.68
47.70
▲ 4.08
40.54
▲ 7.16
40.01
▲ 0.53
—
37.11
▲ 2.90
100 Breast LCM
—
1:59.64
1:47.10
▲ 12.54
—
1:31.03
▲ 16.07
1:23.92
▲ 7.11
1:27.10
▼ 3.18
1:21.06
▲ 6.04
200 Breast LCM
—
—
—
3:32.03
3:15.53
▲ 16.50
—
—
—
50 Fly LCM
—
—
43.09
37.13
▲ 5.96
35.56
▲ 1.57
33.69
▲ 1.87
—
27.96
▲ 5.73
100 Fly LCM
—
—
—
1:32.37
1:21.72
▲ 10.65
1:09.65
▲ 12.07
1:06.85
▲ 2.80
1:01.84
▲ 5.01
200 Fly LCM
—
—
—
—
—
—
—
2:37.14
200 IM LCM
—
—
3:00.04
2:48.75
▲ 11.29
2:37.63
▲ 11.12
2:31.83
▲ 5.80
2:30.79
▲ 1.04
2:24.65
▲ 6.14
400 IM LCM
—
—
—
—
6:12.39
5:23.74
▲ 48.65
5:35.72
▼ 11.98
5:13.23
▲ 22.49
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.