Swimmer profile
Jacob Birch
Male15-16Berkeley AquaticsFL · SOUTHERN
SeasonUSA Swimming season runs Sept – Aug
Event
2015–16
2016–17
2017–18
2018–19
2020–21
2021–22
2022–23
2023–24
2024–25
2025–26
50 Free LCM
1:14.24
53.98
▲ 20.26
46.80
▲ 7.18
38.53
▲ 8.27
33.08
▲ 5.45
30.81
▲ 2.27
29.35
▲ 1.46
27.42
▲ 1.93
26.56
▲ 0.86
25.67
▲ 0.89
100 Free LCM
2:37.05
1:50.70
▲ 46.35
1:39.85
▲ 10.85
1:25.90
▲ 13.95
1:13.29
▲ 12.61
1:06.43
▲ 6.86
1:04.75
▲ 1.68
1:01.06
▲ 3.69
59.13
▲ 1.93
58.18
▲ 0.95
200 Free LCM
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—
—
3:11.28
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2:34.92
▲ 36.36
2:21.25
▲ 13.67
2:16.35
▲ 4.90
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400 Free LCM
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—
—
—
—
—
—
4:53.83
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—
50 Back LCM
1:06.41
1:02.89
▲ 3.52
50.72
▲ 12.17
47.58
▲ 3.14
39.87
▲ 7.71
37.06
▲ 2.81
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33.93
▲ 3.13
32.62
▲ 1.31
30.61
▲ 2.01
100 Back LCM
2:23.08
2:10.78
▲ 12.30
1:48.94
▲ 21.84
1:44.50
▲ 4.44
1:25.00
▲ 19.50
1:21.08
▲ 3.92
1:19.48
▲ 1.60
1:15.01
▲ 4.47
1:12.81
▲ 2.20
1:07.68
▲ 5.13
200 Back LCM
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—
—
—
—
—
2:49.38
2:37.81
▲ 11.57
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50 Breast LCM
1:49.23
1:15.23
▲ 34.00
1:00.68
▲ 14.55
54.76
▲ 5.92
42.31
▲ 12.45
40.57
▲ 1.74
40.06
▲ 0.51
35.81
▲ 4.25
34.03
▲ 1.78
33.40
▲ 0.63
100 Breast LCM
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2:33.66
2:17.01
▲ 16.65
1:57.56
▲ 19.45
1:32.89
▲ 24.67
1:29.44
▲ 3.45
1:26.53
▲ 2.91
1:15.71
▲ 10.82
1:13.65
▲ 2.06
1:10.71
▲ 2.94
200 Breast LCM
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—
—
—
—
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3:01.52
2:47.83
▲ 13.69
2:42.09
▲ 5.74
2:38.83
▲ 3.26
50 Fly LCM
1:39.20
1:10.76
▲ 28.44
1:03.92
▲ 6.84
48.74
▲ 15.18
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—
34.52
▲ 14.22
32.75
▲ 1.77
30.57
▲ 2.18
29.09
▲ 1.48
100 Fly LCM
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—
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1:55.36
—
—
1:22.92
▲ 32.44
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1:12.27
▲ 10.65
1:05.68
▲ 6.59
200 IM LCM
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—
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3:31.94
3:09.10
▲ 22.84
2:55.36
▲ 13.74
2:43.95
▲ 11.41
2:31.21
▲ 12.74
2:22.61
▲ 8.60
2:17.70
▲ 4.91
400 IM LCM
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—
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—
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5:28.46
5:18.27
▲ 10.19
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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.