Swimmer profile
Liam Koos
Male13-14Cheshire Y Sea Dog Swim ClubCT · EASTERN
SeasonUSA Swimming season runs Sept – Aug
Event
2022–23
2023–24
2024–25
2025–26
50 Free SCY
35.71
31.02
▲ 4.69
26.04
▲ 4.98
25.03
▲ 1.01
100 Free SCY
1:22.27
1:09.58
▲ 12.69
58.44
▲ 11.14
54.89
▲ 3.55
200 Free SCY
3:09.31
2:28.13
▲ 41.18
2:08.36
▲ 19.77
2:00.99
▲ 7.37
500 Free SCY
—
6:41.48
5:59.36
▲ 42.12
5:38.24
▲ 21.12
1650 Free SCY
—
—
—
19:00.08
50 Back SCY
42.11
37.07
▲ 5.04
30.68
▲ 6.39
28.18
▲ 2.50
100 Back SCY
1:31.17
1:18.58
▲ 12.59
1:05.80
▲ 12.78
1:01.66
▲ 4.14
200 Back SCY
—
—
2:20.59
2:13.65
▲ 6.94
50 Breast SCY
50.49
43.88
▲ 6.61
33.77
▲ 10.11
31.76
▲ 2.01
100 Breast SCY
1:48.99
1:29.49
▲ 19.50
1:13.68
▲ 15.81
1:04.93
▲ 8.75
200 Breast SCY
—
3:17.06
2:49.01
▲ 28.05
2:24.60
▲ 24.41
50 Fly SCY
—
36.82
28.69
▲ 8.13
26.57
▲ 2.12
100 Fly SCY
—
1:40.54
1:13.37
▲ 27.17
1:01.42
▲ 11.95
200 Fly SCY
—
—
2:38.84
2:28.74
▲ 10.10
100 IM SCY
1:33.49
1:16.79
▲ 16.70
1:05.67
▲ 11.12
1:00.49
▲ 5.18
200 IM SCY
—
2:48.92
2:21.23
▲ 27.69
2:10.25
▲ 10.98
400 IM SCY
—
—
5:16.07
4:44.86
▲ 31.21
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.