Swimmer profile
Mark Crook
Male15-16Mountain Valley AquaticsSE · SOUTHERN
SeasonUSA Swimming season runs Sept – Aug
Event
2021–22
2022–23
2023–24
2024–25
2025–26
50 Free LCM
29.61
27.15
▲ 2.46
25.93
▲ 1.22
25.24
▲ 0.69
25.20
▲ 0.04
100 Free LCM
1:07.55
1:01.27
▲ 6.28
56.10
▲ 5.17
54.91
▲ 1.19
53.99
▲ 0.92
200 Free LCM
—
2:08.89
2:03.69
▲ 5.20
2:01.59
▲ 2.10
2:01.05
▲ 0.54
400 Free LCM
—
4:48.90
4:18.63
▲ 30.27
4:18.84
▼ 0.21
4:24.80
▼ 5.96
800 Free LCM
—
—
10:09.36
9:18.38
▲ 50.98
9:18.99
▼ 0.61
50 Back LCM
35.98
—
—
—
28.10
▲ 7.88
100 Back LCM
1:17.43
1:12.24
▲ 5.19
1:04.12
▲ 8.12
1:02.29
▲ 1.83
1:01.52
▲ 0.77
200 Back LCM
—
2:26.12
2:23.49
▲ 2.63
2:20.21
▲ 3.28
2:13.06
▲ 7.15
50 Breast LCM
39.61
—
—
—
—
100 Breast LCM
1:27.73
1:18.29
▲ 9.44
1:12.31
▲ 5.98
1:21.24
▼ 8.93
—
200 Breast LCM
—
2:48.78
2:49.56
▼ 0.78
—
—
50 Fly LCM
36.28
—
—
—
27.02
▲ 9.26
100 Fly LCM
—
—
1:00.95
1:00.87
▲ 0.08
59.58
▲ 1.29
200 Fly LCM
—
—
—
2:24.20
—
200 IM LCM
2:55.57
2:25.61
▲ 29.96
2:19.62
▲ 5.99
2:23.03
▼ 3.41
2:18.33
▲ 4.70
400 IM LCM
—
5:38.39
5:15.71
▲ 22.68
5:07.28
▲ 8.43
4:57.88
▲ 9.40
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.