Swimmer profile
John Shackleton
Male11-12North Coast AquaticsSI · WESTERN
SeasonUSA Swimming season runs Sept – Aug
Event
2023–24
2024–25
2025–26
50 Free SCY
27.61
26.28
▲ 1.33
25.98
▲ 0.30
100 Free SCY
59.54
57.46
▲ 2.08
56.03
▲ 1.43
200 Free SCY
2:11.62
2:06.30
▲ 5.32
2:00.51
▲ 5.79
500 Free SCY
5:56.41
5:36.04
▲ 20.37
5:20.08
▲ 15.96
1000 Free SCY
12:33.14
11:29.29
▲ 63.85
11:16.39
▲ 12.90
1650 Free SCY
—
19:24.97
18:51.34
▲ 33.63
50 Back SCY
32.07
30.50
▲ 1.57
29.79
▲ 0.71
100 Back SCY
1:08.97
1:05.46
▲ 3.51
1:02.03
▲ 3.43
200 Back SCY
2:25.16
2:16.95
▲ 8.21
2:15.69
▲ 1.26
50 Breast SCY
40.29
38.92
▲ 1.37
38.79
▲ 0.13
100 Breast SCY
1:29.06
1:26.83
▲ 2.23
1:22.02
▲ 4.81
200 Breast SCY
3:05.94
3:14.74
▼ 8.80
—
50 Fly SCY
31.26
30.50
▲ 0.76
29.35
▲ 1.15
100 Fly SCY
1:14.33
1:11.44
▲ 2.89
1:05.83
▲ 5.61
200 Fly SCY
—
—
2:30.86
100 IM SCY
1:13.27
1:08.35
▲ 4.92
1:04.86
▲ 3.49
200 IM SCY
2:33.98
2:25.23
▲ 8.75
2:24.77
▲ 0.46
400 IM SCY
—
5:14.10
5:00.65
▲ 13.45
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.