Swimmer profile
Hayden Pehrson
Male11-12Williston Sea LionsND · CENTRAL
SeasonUSA Swimming season runs Sept – Aug
Event
2021–22
2022–23
2023–24
2024–25
2025–26
50 Free LCM
55.22
42.55
▲ 12.67
37.44
▲ 5.11
35.36
▲ 2.08
34.34
▲ 1.02
100 Free LCM
2:02.43
1:40.52
▲ 21.91
1:24.24
▲ 16.28
1:18.27
▲ 5.97
1:15.50
▲ 2.77
200 Free LCM
—
4:05.62
3:02.57
▲ 63.05
2:51.00
▲ 11.57
2:41.83
▲ 9.17
400 Free LCM
—
—
—
6:09.41
5:47.62
▲ 21.79
1500 Free LCM
—
—
—
25:09.93
—
50 Back LCM
1:01.60
52.13
▲ 9.47
46.29
▲ 5.84
42.93
▲ 3.36
43.32
▼ 0.39
100 Back LCM
2:05.23
1:52.03
▲ 13.20
1:42.97
▲ 9.06
—
—
50 Breast LCM
—
1:06.23
54.83
▲ 11.40
56.78
▼ 1.95
49.16
▲ 7.62
100 Breast LCM
—
2:45.79
2:04.87
▲ 40.92
—
1:42.22
▲ 22.65
200 Breast LCM
—
—
—
—
3:52.63
50 Fly LCM
1:11.80
48.44
▲ 23.36
48.02
▲ 0.42
41.36
▲ 6.66
38.78
▲ 2.58
100 Fly LCM
—
—
2:09.59
1:48.58
▲ 21.01
1:41.12
▲ 7.46
200 IM LCM
—
4:42.97
3:29.62
▲ 73.35
3:16.42
▲ 13.20
3:16.43
▼ 0.01
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.