Swimmer profile
Louie Koslin
Male15-16Excel AquaticsSE · SOUTHERN
SeasonUSA Swimming season runs Sept – Aug
Event
2020–21
2021–22
2022–23
2023–24
2024–25
2025–26
50 Free LCM
35.64
34.42
▲ 1.22
31.71
▲ 2.71
28.09
▲ 3.62
25.28
▲ 2.81
24.37
▲ 0.91
100 Free LCM
1:22.27
1:13.65
▲ 8.62
1:11.47
▲ 2.18
1:02.35
▲ 9.12
55.56
▲ 6.79
54.10
▲ 1.46
200 Free LCM
3:01.41
2:46.75
▲ 14.66
2:31.40
▲ 15.35
2:16.00
▲ 15.40
2:01.04
▲ 14.96
1:58.31
▲ 2.73
400 Free LCM
6:18.33
—
5:24.54
▲ 53.79
4:52.92
▲ 31.62
4:20.89
▲ 32.03
4:14.41
▲ 6.48
1500 Free LCM
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—
—
—
17:37.16
17:33.38
▲ 3.78
50 Back LCM
41.15
39.01
▲ 2.14
36.38
▲ 2.63
31.90
▲ 4.48
30.34
▲ 1.56
29.96
▲ 0.38
100 Back LCM
1:29.84
1:24.95
▲ 4.89
1:18.25
▲ 6.70
1:10.13
▲ 8.12
1:05.21
▲ 4.92
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200 Back LCM
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—
—
2:31.58
2:21.41
▲ 10.17
2:23.34
▼ 1.93
50 Breast LCM
52.34
45.34
▲ 7.00
43.26
▲ 2.08
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—
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100 Breast LCM
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1:41.42
1:33.59
▲ 7.83
1:27.04
▲ 6.55
1:20.66
▲ 6.38
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200 Breast LCM
—
—
—
3:09.69
—
—
50 Fly LCM
46.08
39.81
▲ 6.27
36.24
▲ 3.57
—
—
27.15
▲ 9.09
100 Fly LCM
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1:37.38
1:30.41
▲ 6.97
—
1:06.36
▲ 24.05
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200 IM LCM
3:26.86
3:09.67
▲ 17.19
2:59.96
▲ 9.71
—
2:21.21
▲ 38.75
2:15.92
▲ 5.29
400 IM LCM
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—
—
—
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5:02.83
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.