Swimmer profile
Koehn Boyd
Male17-18Edina Swim ClubMN · CENTRAL
SeasonUSA Swimming season runs Sept – Aug
Event
2016–17
2017–18
2018–19
2020–21
2021–22
2022–23
2023–24
2024–25
2025–26
50 Free LCM
50.47
37.57
▲ 12.90
32.37
▲ 5.20
29.66
▲ 2.71
27.54
▲ 2.12
26.84
▲ 0.70
26.11
▲ 0.73
24.96
▲ 1.15
24.92
▲ 0.04
100 Free LCM
1:43.40
1:22.50
▲ 20.90
1:17.56
▲ 4.94
1:04.13
▲ 13.43
1:02.44
▲ 1.69
58.28
▲ 4.16
56.09
▲ 2.19
54.42
▲ 1.67
54.44
▼ 0.02
200 Free LCM
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—
2:40.14
2:18.82
▲ 21.32
2:15.39
▲ 3.43
2:02.47
▲ 12.92
1:59.72
▲ 2.75
1:56.48
▲ 3.24
1:56.61
▼ 0.13
400 Free LCM
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—
—
5:11.32
4:41.61
▲ 29.71
4:21.02
▲ 20.59
4:17.79
▲ 3.23
4:08.87
▲ 8.92
4:04.05
▲ 4.82
800 Free LCM
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—
—
—
—
8:59.68
9:17.92
▼ 18.24
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—
50 Back LCM
56.85
42.18
▲ 14.67
40.11
▲ 2.07
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—
—
—
—
—
100 Back LCM
—
1:33.68
1:26.37
▲ 7.31
—
1:12.79
▲ 13.58
1:10.04
▲ 2.75
1:08.03
▲ 2.01
1:08.45
▼ 0.42
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200 Back LCM
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—
—
—
—
2:35.66
—
—
2:18.12
▲ 17.54
50 Breast LCM
1:06.78
—
51.26
▲ 15.52
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—
—
—
—
—
100 Breast LCM
—
—
1:47.14
—
1:28.23
▲ 18.91
1:22.65
▲ 5.58
1:19.85
▲ 2.80
1:16.42
▲ 3.43
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200 Breast LCM
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—
—
—
3:00.40
2:55.78
▲ 4.62
—
2:39.60
▲ 16.18
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50 Fly LCM
58.75
40.26
▲ 18.49
33.27
▲ 6.99
29.64
▲ 3.63
27.83
▲ 1.81
27.93
▼ 0.10
27.14
▲ 0.79
26.17
▲ 0.97
27.13
▼ 0.96
100 Fly LCM
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1:37.43
1:16.57
▲ 20.86
1:05.79
▲ 10.78
59.89
▲ 5.90
1:00.02
▼ 0.13
58.21
▲ 1.81
57.85
▲ 0.36
57.58
▲ 0.27
200 Fly LCM
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—
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2:30.18
2:10.95
▲ 19.23
2:11.91
▼ 0.96
2:05.75
▲ 6.16
2:03.32
▲ 2.43
2:06.10
▼ 2.78
200 IM LCM
4:29.83
3:21.55
▲ 68.28
2:58.74
▲ 22.81
2:39.54
▲ 19.20
2:30.41
▲ 9.13
2:22.50
▲ 7.91
2:16.99
▲ 5.51
2:13.48
▲ 3.51
2:11.48
▲ 2.00
400 IM LCM
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—
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5:54.62
5:13.53
▲ 41.09
4:54.96
▲ 18.57
4:51.21
▲ 3.75
4:39.06
▲ 12.15
4:36.01
▲ 3.05
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.