Swimmer profile
Collin Holgerson
Male17-18SwimAtlantaGA · SOUTHERN
SeasonUSA Swimming season runs Sept – Aug
Event
2015–16
2016–17
2017–18
2018–19
2019–20
2020–21
2021–22
2022–23
2023–24
2024–25
2025–26
50 Free SCY
48.38
34.93
▲ 13.45
33.30
▲ 1.63
29.96
▲ 3.34
28.68
▲ 1.28
25.26
▲ 3.42
24.02
▲ 1.24
22.41
▲ 1.61
—
20.62
▲ 1.79
20.15
▲ 0.47
100 Free SCY
—
1:27.90
1:13.29
▲ 14.61
1:07.21
▲ 6.08
1:01.31
▲ 5.90
55.22
▲ 6.09
53.17
▲ 2.05
49.87
▲ 3.30
—
—
47.84
▲ 2.03
200 Free SCY
—
—
2:49.95
2:28.39
▲ 21.56
2:11.40
▲ 16.99
1:59.15
▲ 12.25
1:55.55
▲ 3.60
1:49.00
▲ 6.55
—
1:39.53
▲ 9.47
1:46.17
▼ 6.64
500 Free SCY
—
—
—
6:20.07
6:02.63
▲ 17.44
5:38.73
▲ 23.90
5:09.12
▲ 29.61
4:58.10
▲ 11.02
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—
—
1000 Free SCY
—
—
—
—
—
—
10:59.45
—
—
—
—
50 Back SCY
49.49
38.15
▲ 11.34
34.38
▲ 3.77
31.53
▲ 2.85
29.30
▲ 2.23
26.80
▲ 2.50
25.06
▲ 1.74
23.52
▲ 1.54
22.40
▲ 1.12
21.70
▲ 0.70
20.86
▲ 0.84
100 Back SCY
—
—
1:15.07
1:08.03
▲ 7.04
1:03.02
▲ 5.01
57.78
▲ 5.24
53.38
▲ 4.40
50.26
▲ 3.12
48.73
▲ 1.53
46.87
▲ 1.86
44.94
▲ 1.93
200 Back SCY
—
—
—
—
2:14.87
2:06.73
▲ 8.14
1:54.99
▲ 11.74
1:50.04
▲ 4.95
1:59.91
▼ 9.87
1:43.34
▲ 16.57
1:39.74
▲ 3.60
50 Breast SCY
55.91
47.42
▲ 8.49
41.24
▲ 6.18
35.64
▲ 5.60
33.79
▲ 1.85
31.65
▲ 2.14
—
26.73
▲ 4.92
26.03
▲ 0.70
24.80
▲ 1.23
—
100 Breast SCY
2:04.60
1:46.02
▲ 18.58
1:36.06
▲ 9.96
1:18.84
▲ 17.22
1:13.84
▲ 5.00
1:10.20
▲ 3.64
1:01.29
▲ 8.91
56.55
▲ 4.74
54.88
▲ 1.67
52.94
▲ 1.94
51.75
▲ 1.19
200 Breast SCY
—
—
—
—
2:38.38
2:32.84
▲ 5.54
2:11.25
▲ 21.59
2:04.38
▲ 6.87
2:03.75
▲ 0.63
1:59.44
▲ 4.31
1:53.63
▲ 5.81
50 Fly SCY
—
—
41.80
32.13
▲ 9.67
30.06
▲ 2.07
26.61
▲ 3.45
—
—
23.16
▲ 3.45
—
23.33
▼ 0.17
100 Fly SCY
—
—
—
1:14.09
1:07.57
▲ 6.52
1:01.80
▲ 5.77
54.71
▲ 7.09
50.93
▲ 3.78
48.74
▲ 2.19
47.58
▲ 1.16
46.82
▲ 0.76
200 Fly SCY
—
—
—
—
2:46.23
2:21.11
▲ 25.12
2:02.31
▲ 18.80
1:56.06
▲ 6.25
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—
—
100 IM SCY
—
1:31.09
1:21.26
▲ 9.83
1:10.19
▲ 11.07
1:05.78
▲ 4.41
1:01.48
▲ 4.30
55.08
▲ 6.40
52.54
▲ 2.54
—
49.45
▲ 3.09
—
200 IM SCY
—
—
—
2:35.47
2:18.74
▲ 16.73
2:12.97
▲ 5.77
1:57.63
▲ 15.34
1:51.83
▲ 5.80
1:50.11
▲ 1.72
1:46.13
▲ 3.98
1:43.23
▲ 2.90
400 IM SCY
—
—
—
—
5:02.63
4:46.36
▲ 16.27
4:12.47
▲ 33.89
4:02.39
▲ 10.08
4:08.09
▼ 5.70
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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.