Swimmer profile
John Shackleton
Male11-12North Coast AquaticsSI · WESTERN
SeasonUSA Swimming season runs Sept – Aug
Event
2023–24
2024–25
2025–26
50 Free LCM
30.55
29.69
▲ 0.86
29.67
▲ 0.02
100 Free LCM
1:06.52
1:04.42
▲ 2.10
1:03.20
▲ 1.22
200 Free LCM
2:25.05
2:18.66
▲ 6.39
2:21.59
▼ 2.93
400 Free LCM
5:12.65
4:57.35
▲ 15.30
4:52.60
▲ 4.75
800 Free LCM
—
—
9:53.81
1500 Free LCM
—
—
18:54.01
50 Back LCM
36.00
35.05
▲ 0.95
34.41
▲ 0.64
100 Back LCM
1:16.78
1:14.81
▲ 1.97
1:14.71
▲ 0.10
200 Back LCM
2:46.96
2:37.53
▲ 9.43
2:36.80
▲ 0.73
50 Breast LCM
—
—
44.84
200 Breast LCM
—
—
3:30.10
50 Fly LCM
35.49
34.79
▲ 0.70
33.50
▲ 1.29
200 Fly LCM
—
—
3:15.06
200 IM LCM
2:57.38
2:47.13
▲ 10.25
2:43.65
▲ 3.48
400 IM LCM
—
5:54.88
—
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.