Swimmer profile
William Matthaei
Male13-14Northern Lights Swimming AssociationND · CENTRAL
SeasonUSA Swimming season runs Sept – Aug
Event
2023–24
2024–25
2025–26
50 Free LCM
—
37.94
32.44
▲ 5.50
100 Free LCM
1:48.78
1:32.10
▲ 16.68
1:14.46
▲ 17.64
200 Free LCM
4:07.99
3:19.47
▲ 48.52
2:51.13
▲ 28.34
400 Free LCM
—
7:10.08
—
50 Back LCM
1:03.24
49.79
▲ 13.45
41.26
▲ 8.53
100 Back LCM
1:59.98
1:42.88
▲ 17.10
1:31.87
▲ 11.01
200 Back LCM
—
—
3:28.91
50 Breast LCM
—
55.08
43.11
▲ 11.97
100 Breast LCM
—
1:55.30
1:36.93
▲ 18.37
200 Breast LCM
—
—
3:45.77
50 Fly LCM
—
54.71
40.62
▲ 14.09
100 Fly LCM
2:29.99
1:52.59
▲ 37.40
1:37.22
▲ 15.37
200 Fly LCM
—
—
4:08.72
200 IM LCM
4:38.22
3:57.40
▲ 40.82
3:14.98
▲ 42.42
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.