Swimmer profile
Jack Janzen
Male15-16RISE Aquatic ClubIL · CENTRAL
SeasonUSA Swimming season runs Sept – Aug
Event
2018–19
2020–21
2021–22
2022–23
2023–24
2024–25
2025–26
50 Free LCM
50.61
39.05
▲ 11.56
34.40
▲ 4.65
31.73
▲ 2.67
29.27
▲ 2.46
26.74
▲ 2.53
26.73
▲ 0.01
100 Free LCM
1:53.05
1:28.46
▲ 24.59
1:16.86
▲ 11.60
1:09.42
▲ 7.44
1:02.10
▲ 7.32
57.91
▲ 4.19
59.83
▼ 1.92
200 Free LCM
—
—
2:44.02
2:30.73
▲ 13.29
2:16.27
▲ 14.46
2:09.58
▲ 6.69
2:10.60
▼ 1.02
400 Free LCM
—
—
5:37.70
5:18.16
▲ 19.54
4:49.84
▲ 28.32
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—
800 Free LCM
—
—
—
—
10:16.97
—
—
1500 Free LCM
—
—
—
—
19:50.32
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—
50 Back LCM
52.53
41.65
▲ 10.88
37.50
▲ 4.15
—
31.98
▲ 5.52
29.92
▲ 2.06
28.57
▲ 1.35
100 Back LCM
1:48.46
1:26.89
▲ 21.57
1:18.56
▲ 8.33
1:17.00
▲ 1.56
1:07.03
▲ 9.97
1:03.08
▲ 3.95
1:02.03
▲ 1.05
200 Back LCM
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—
2:49.71
2:40.17
▲ 9.54
2:25.00
▲ 15.17
2:18.50
▲ 6.50
2:17.63
▲ 0.87
50 Breast LCM
1:06.36
54.06
▲ 12.30
52.88
▲ 1.18
—
43.31
▲ 9.57
38.04
▲ 5.27
—
100 Breast LCM
—
1:55.27
1:51.16
▲ 4.11
1:40.85
▲ 10.31
1:33.60
▲ 7.25
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—
200 Breast LCM
—
—
—
—
3:23.36
—
—
50 Fly LCM
—
—
42.62
35.91
▲ 6.71
32.46
▲ 3.45
29.50
▲ 2.96
30.82
▼ 1.32
100 Fly LCM
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—
—
1:21.12
1:16.07
▲ 5.05
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—
200 IM LCM
—
—
3:04.53
2:51.36
▲ 13.17
2:31.40
▲ 19.96
2:27.44
▲ 3.96
2:28.67
▼ 1.23
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.