Swimmer profile
William Loeffel
Male17-18Swim Streamline at NorthamptonGU · SOUTHERN
SeasonUSA Swimming season runs Sept – Aug
Event
2016–17
2017–18
2018–19
2020–21
2021–22
2022–23
2023–24
2024–25
2025–26
50 Free LCM
—
39.41
35.15
▲ 4.26
33.57
▲ 1.58
31.63
▲ 1.94
30.03
▲ 1.60
28.78
▲ 1.25
27.41
▲ 1.37
26.62
▲ 0.79
100 Free LCM
—
1:28.08
1:21.56
▲ 6.52
1:11.29
▲ 10.27
1:08.31
▲ 2.98
1:05.02
▲ 3.29
1:01.48
▲ 3.54
59.60
▲ 1.88
58.04
▲ 1.56
200 Free LCM
3:49.17
3:09.69
▲ 39.48
2:52.28
▲ 17.41
2:33.81
▲ 18.47
2:22.87
▲ 10.94
2:16.18
▲ 6.69
2:08.68
▲ 7.50
2:06.95
▲ 1.73
2:05.05
▲ 1.90
400 Free LCM
—
6:33.48
6:10.72
▲ 22.76
5:23.85
▲ 46.87
4:55.07
▲ 28.78
4:43.30
▲ 11.77
4:28.86
▲ 14.44
4:28.84
▲ 0.02
4:29.19
▼ 0.35
800 Free LCM
—
—
—
10:52.44
10:01.23
▲ 51.21
9:38.72
▲ 22.51
9:17.39
▲ 21.33
9:20.70
▼ 3.31
9:21.94
▼ 1.24
1500 Free LCM
—
—
—
—
19:20.97
18:36.80
▲ 44.17
17:41.83
▲ 54.97
—
—
50 Back LCM
—
48.76
—
37.51
▲ 11.25
—
—
—
—
—
100 Back LCM
—
1:39.99
1:32.17
▲ 7.82
1:20.69
▲ 11.48
1:16.39
▲ 4.30
1:13.32
▲ 3.07
1:10.17
▲ 3.15
1:09.05
▲ 1.12
1:07.73
▲ 1.32
200 Back LCM
—
—
3:15.17
2:48.42
▲ 26.75
2:38.06
▲ 10.36
2:31.62
▲ 6.44
2:29.23
▲ 2.39
2:33.02
▼ 3.79
2:24.64
▲ 8.38
50 Breast LCM
—
55.78
49.86
▲ 5.92
45.40
▲ 4.46
—
—
—
32.79
▲ 12.61
32.28
▲ 0.51
100 Breast LCM
2:23.51
1:57.34
▲ 26.17
1:46.90
▲ 10.44
1:37.83
▲ 9.07
—
1:24.53
▲ 13.30
1:19.22
▲ 5.31
1:11.60
▲ 7.62
1:07.95
▲ 3.65
200 Breast LCM
—
—
3:43.87
3:22.11
▲ 21.76
—
3:04.54
▲ 17.57
2:42.52
▲ 22.02
2:36.18
▲ 6.34
2:32.88
▲ 3.30
50 Fly LCM
1:05.38
46.72
▲ 18.66
—
37.60
▲ 9.12
—
—
—
—
28.67
▲ 8.93
100 Fly LCM
—
—
1:33.78
1:28.14
▲ 5.64
1:21.34
▲ 6.80
—
1:11.36
▲ 9.98
1:05.84
▲ 5.52
1:06.21
▼ 0.37
200 IM LCM
—
3:31.28
3:15.65
▲ 15.63
2:55.63
▲ 20.02
2:45.18
▲ 10.45
2:36.08
▲ 9.10
2:28.16
▲ 7.92
2:17.93
▲ 10.23
2:18.12
▼ 0.19
400 IM LCM
—
—
—
6:15.05
5:47.26
▲ 27.79
5:38.14
▲ 9.12
5:07.99
▲ 30.15
4:53.48
▲ 14.51
4:54.81
▼ 1.33
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.