Swimmer profile
William Coburn
Male13-14Dynamo Swim ClubGA · SOUTHERN
SeasonUSA Swimming season runs Sept – Aug
Event
2021–22
2022–23
2023–24
2024–25
2025–26
50 Free LCM
40.89
36.94
▲ 3.95
33.89
▲ 3.05
30.25
▲ 3.64
29.49
▲ 0.76
100 Free LCM
1:32.94
1:23.30
▲ 9.64
1:13.71
▲ 9.59
1:07.23
▲ 6.48
1:05.26
▲ 1.97
200 Free LCM
3:18.95
2:59.56
▲ 19.39
2:38.56
▲ 21.00
2:24.65
▲ 13.91
2:19.00
▲ 5.65
400 Free LCM
—
6:08.25
5:29.41
▲ 38.84
5:00.17
▲ 29.24
4:40.77
▲ 19.40
800 Free LCM
—
—
11:23.13
10:13.06
▲ 70.07
9:57.91
▲ 15.15
50 Back LCM
48.59
43.90
▲ 4.69
38.43
▲ 5.47
35.44
▲ 2.99
34.41
▲ 1.03
100 Back LCM
1:47.64
1:32.82
▲ 14.82
1:21.61
▲ 11.21
1:14.98
▲ 6.63
1:13.84
▲ 1.14
200 Back LCM
—
—
2:47.17
2:38.23
▲ 8.94
2:36.49
▲ 1.74
50 Breast LCM
54.15
49.15
▲ 5.00
46.54
▲ 2.61
44.53
▲ 2.01
40.93
▲ 3.60
100 Breast LCM
1:59.87
1:50.38
▲ 9.49
1:45.08
▲ 5.30
1:34.68
▲ 10.40
1:27.18
▲ 7.50
200 Breast LCM
—
—
3:41.28
3:24.59
▲ 16.69
3:01.73
▲ 22.86
50 Fly LCM
59.35
47.72
▲ 11.63
43.11
▲ 4.61
37.31
▲ 5.80
33.99
▲ 3.32
100 Fly LCM
2:20.64
1:51.87
▲ 28.77
1:40.87
▲ 11.00
1:25.47
▲ 15.40
1:17.03
▲ 8.44
200 Fly LCM
—
—
—
—
2:47.97
200 IM LCM
3:54.88
3:24.71
▲ 30.17
3:05.04
▲ 19.67
2:46.27
▲ 18.77
—
400 IM LCM
—
—
—
5:49.79
5:22.85
▲ 26.94
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.