Swimmer profile
Jack Jannasch
MaleOpen / SeniorTiger Aquatics Swim ClubGU · SOUTHERN
SeasonUSA Swimming season runs Sept – Aug
Event
2009–10
2010–11
2011–12
2012–13
2013–14
2014–15
2015–16
2016–17
2017–18
2018–19
2020–21
2021–22
2022–23
2025–26
50 Free LCM
37.34
32.32
▲ 5.02
29.69
▲ 2.63
27.80
▲ 1.89
26.75
▲ 1.05
25.35
▲ 1.40
24.80
▲ 0.55
24.08
▲ 0.72
23.84
▲ 0.24
23.63
▲ 0.21
23.49
▲ 0.14
23.10
▲ 0.39
23.80
▼ 0.70
24.34
▼ 0.54
100 Free LCM
1:24.47
1:14.79
▲ 9.68
1:06.93
▲ 7.86
1:02.76
▲ 4.17
59.56
▲ 3.20
57.11
▲ 2.45
55.46
▲ 1.65
53.67
▲ 1.79
52.36
▲ 1.31
52.73
▼ 0.37
51.55
▲ 1.18
51.39
▲ 0.16
52.45
▼ 1.06
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200 Free LCM
3:13.80
2:43.33
▲ 30.47
2:27.07
▲ 16.26
2:22.76
▲ 4.31
2:13.50
▲ 9.26
2:04.95
▲ 8.55
2:02.75
▲ 2.20
2:06.73
▼ 3.98
2:00.22
▲ 6.51
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400 Free LCM
6:44.11
6:02.37
▲ 41.74
5:25.00
▲ 37.37
5:09.81
▲ 15.19
4:41.37
▲ 28.44
4:26.91
▲ 14.46
4:23.14
▲ 3.77
4:39.93
▼ 16.79
4:33.56
▲ 6.37
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—
—
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800 Free LCM
—
—
—
—
—
—
9:33.82
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—
—
—
—
—
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50 Back LCM
44.45
40.48
▲ 3.97
35.63
▲ 4.85
32.47
▲ 3.16
31.25
▲ 1.22
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29.08
▲ 2.17
—
27.71
▲ 1.37
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—
—
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100 Back LCM
1:35.62
1:27.52
▲ 8.10
1:23.22
▲ 4.30
1:13.45
▲ 9.77
1:08.54
▲ 4.91
1:04.97
▲ 3.57
1:04.96
▲ 0.01
1:06.02
▼ 1.06
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—
—
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200 Back LCM
—
—
2:58.63
2:40.75
▲ 17.88
2:31.59
▲ 9.16
2:20.99
▲ 10.60
2:18.81
▲ 2.18
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—
—
—
—
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50 Breast LCM
—
56.37
46.48
▲ 9.89
—
—
—
—
—
30.29
▲ 16.19
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—
—
—
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100 Breast LCM
—
—
1:51.33
1:32.07
▲ 19.26
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—
—
1:13.24
▲ 18.83
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—
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200 Breast LCM
—
—
—
—
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2:58.41
3:01.84
▼ 3.43
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—
—
—
—
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50 Fly LCM
—
49.13
40.53
▲ 8.60
—
—
—
—
—
25.82
▲ 14.71
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—
—
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100 Fly LCM
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1:53.13
1:46.35
▲ 6.78
1:24.02
▲ 22.33
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—
1:04.47
▲ 19.55
1:01.35
▲ 3.12
58.80
▲ 2.55
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56.14
▲ 2.66
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200 IM LCM
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3:28.13
3:03.95
▲ 24.18
2:41.59
▲ 22.36
2:35.62
▲ 5.97
2:21.54
▲ 14.08
2:18.42
▲ 3.12
2:27.14
▼ 8.72
2:18.80
▲ 8.34
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400 IM LCM
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—
—
—
—
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5:15.34
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—
—
—
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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.