Swimmer profile
William Qin
Male15-16Commonwealth SwimmingNE · EASTERN
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 SCY
41.13
39.06
▲ 2.07
34.67
▲ 4.39
29.85
▲ 4.82
27.50
▲ 2.35
24.52
▲ 2.98
24.27
▲ 0.25
24.16
▲ 0.11
100 Free SCY
1:38.83
1:26.72
▲ 12.11
1:19.02
▲ 7.70
1:07.78
▲ 11.24
1:01.13
▲ 6.65
55.24
▲ 5.89
54.00
▲ 1.24
52.42
▲ 1.58
200 Free SCY
—
3:15.04
2:54.22
▲ 20.82
2:26.40
▲ 27.82
2:08.79
▲ 17.61
2:01.67
▲ 7.12
1:53.74
▲ 7.93
2:02.42
▼ 8.68
500 Free SCY
—
—
—
6:31.23
—
5:23.42
▲ 67.81
5:08.99
▲ 14.43
5:31.59
▼ 22.60
1000 Free SCY
—
—
—
—
—
11:30.49
—
—
50 Back SCY
48.83
49.51
▼ 0.68
42.96
▲ 6.55
35.05
▲ 7.91
—
31.01
▲ 4.04
—
31.44
▼ 0.43
100 Back SCY
1:55.95
1:44.66
▲ 11.29
1:26.82
▲ 17.84
1:14.72
▲ 12.10
1:11.33
▲ 3.39
1:06.81
▲ 4.52
1:03.71
▲ 3.10
1:02.30
▲ 1.41
200 Back SCY
—
—
3:19.63
2:40.94
▲ 38.69
2:26.66
▲ 14.28
2:21.75
▲ 4.91
2:15.89
▲ 5.86
2:25.22
▼ 9.33
50 Breast SCY
—
50.92
48.95
▲ 1.97
39.44
▲ 9.51
—
—
29.51
▲ 9.93
30.16
▼ 0.65
100 Breast SCY
1:57.61
1:52.42
▲ 5.19
1:48.08
▲ 4.34
1:25.89
▲ 22.19
1:20.05
▲ 5.84
1:10.29
▲ 9.76
1:03.17
▲ 7.12
1:02.51
▲ 0.66
200 Breast SCY
—
—
—
3:20.75
2:45.78
▲ 34.97
2:30.18
▲ 15.60
2:19.66
▲ 10.52
2:23.77
▼ 4.11
50 Fly SCY
50.93
46.93
▲ 4.00
47.76
▼ 0.83
36.20
▲ 11.56
—
—
—
—
100 Fly SCY
—
—
—
1:23.43
1:23.86
▼ 0.43
—
1:01.71
▲ 22.15
1:02.54
▼ 0.83
200 Fly SCY
—
—
—
—
—
—
2:22.09
—
100 IM SCY
—
—
—
1:16.41
—
—
—
1:03.82
▲ 12.59
200 IM SCY
—
—
—
2:42.15
2:30.46
▲ 11.69
2:19.90
▲ 10.56
2:07.68
▲ 12.22
2:08.69
▼ 1.01
400 IM SCY
—
—
—
—
—
—
4:34.37
4:50.45
▼ 16.08
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.