Swimmer profile
Mark Seidling
Male17-18Mandan Marlins Swim ClubND · CENTRAL
SeasonUSA Swimming season runs Sept – Aug
Event
2021–22
2022–23
2023–24
2024–25
2025–26
50 Free LCM
36.22
31.81
▲ 4.41
29.80
▲ 2.01
28.14
▲ 1.66
—
100 Free LCM
1:19.67
1:13.13
▲ 6.54
1:04.44
▲ 8.69
1:02.01
▲ 2.43
—
200 Free LCM
—
2:35.78
2:22.58
▲ 13.20
2:09.74
▲ 12.84
2:26.29
▼ 16.55
400 Free LCM
7:14.58
5:16.18
▲ 118.40
4:40.04
▲ 36.14
4:39.06
▲ 0.98
—
800 Free LCM
—
10:49.95
9:36.46
▲ 73.49
9:29.34
▲ 7.12
—
1500 Free LCM
—
20:31.82
18:33.05
▲ 118.77
17:59.97
▲ 33.08
—
50 Back LCM
47.48
37.73
▲ 9.75
—
—
—
100 Back LCM
1:45.71
—
1:19.04
▲ 26.67
—
—
200 Back LCM
3:39.59
3:00.80
▲ 38.79
2:57.20
▲ 3.60
2:47.69
▲ 9.51
3:08.00
▼ 20.31
50 Breast LCM
55.02
—
—
—
—
100 Breast LCM
—
—
1:28.07
1:19.91
▲ 8.16
1:22.02
▼ 2.11
200 Breast LCM
—
3:19.09
2:57.95
▲ 21.14
2:52.73
▲ 5.22
3:07.01
▼ 14.28
50 Fly LCM
54.20
—
31.90
▲ 22.30
30.70
▲ 1.20
—
100 Fly LCM
—
—
1:15.40
1:10.11
▲ 5.29
—
200 Fly LCM
—
3:17.49
2:43.23
▲ 34.26
2:36.34
▲ 6.89
—
200 IM LCM
3:36.47
3:01.88
▲ 34.59
2:37.33
▲ 24.55
2:31.37
▲ 5.96
2:37.68
▼ 6.31
400 IM LCM
—
6:04.08
5:25.37
▲ 38.71
5:24.70
▲ 0.67
5:55.23
▼ 30.53
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.