Swimmer profile
Jiayin Jian-Gross
Female17-18Rochester Swim ClubMN · CENTRAL
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
52.48
40.71
▲ 11.77
36.78
▲ 3.93
—
32.38
▲ 4.40
30.62
▲ 1.76
29.73
▲ 0.89
29.99
▼ 0.26
30.51
▼ 0.52
30.10
▲ 0.41
100 Free LCM
2:04.88
1:43.49
▲ 21.39
1:28.73
▲ 14.76
—
1:15.33
▲ 13.40
1:09.14
▲ 6.19
1:05.62
▲ 3.52
1:06.90
▼ 1.28
1:07.30
▼ 0.40
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200 Free LCM
—
—
—
—
—
2:35.52
2:31.07
▲ 4.45
2:33.63
▼ 2.56
2:29.74
▲ 3.89
2:27.36
▲ 2.38
400 Free LCM
—
—
—
—
—
5:32.68
—
—
—
—
50 Back LCM
56.42
47.16
▲ 9.26
42.62
▲ 4.54
41.14
▲ 1.48
33.86
▲ 7.28
33.09
▲ 0.77
32.89
▲ 0.20
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—
—
100 Back LCM
—
1:53.54
1:34.58
▲ 18.96
1:28.34
▲ 6.24
1:13.94
▲ 14.40
1:13.58
▲ 0.36
1:12.92
▲ 0.66
1:11.88
▲ 1.04
1:14.23
▼ 2.35
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200 Back LCM
—
—
—
—
2:49.90
2:44.14
▲ 5.76
2:43.32
▲ 0.82
2:42.85
▲ 0.47
2:44.34
▼ 1.49
2:40.08
▲ 4.26
50 Breast LCM
1:09.60
—
52.06
▲ 17.54
—
48.67
▲ 3.39
—
—
—
—
—
100 Breast LCM
—
—
—
—
1:49.96
—
1:39.86
▲ 10.10
—
—
—
50 Fly LCM
—
49.60
44.75
▲ 4.85
39.66
▲ 5.09
35.66
▲ 4.00
—
—
—
—
31.77
▲ 3.89
100 Fly LCM
—
—
—
—
—
1:22.67
1:17.36
▲ 5.31
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—
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200 IM LCM
—
—
—
—
—
2:55.08
2:52.22
▲ 2.86
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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.