Swimmer profile
Natalie Sierzanowski
Female17-18Fox Valley Swim TeamIL · CENTRALCollege athlete · Carnegie Mellon UniversityD3
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
37.08
30.78
▲ 6.30
27.15
▲ 3.63
26.34
▲ 0.81
25.96
▲ 0.38
26.38
▼ 0.42
25.36
▲ 1.02
25.57
▼ 0.21
24.55
▲ 1.02
24.55
± 0.00
24.88
▼ 0.33
100 Free SCY
1:27.47
1:10.79
▲ 16.68
58.52
▲ 12.27
58.23
▲ 0.29
57.99
▲ 0.24
56.24
▲ 1.75
55.69
▲ 0.55
55.30
▲ 0.39
54.19
▲ 1.11
54.45
▼ 0.26
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200 Free SCY
—
2:29.88
2:11.16
▲ 18.72
2:08.92
▲ 2.24
2:08.55
▲ 0.37
2:04.96
▲ 3.59
2:11.85
▼ 6.89
2:05.62
▲ 6.23
1:56.40
▲ 9.22
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—
500 Free SCY
—
—
6:02.32
5:50.39
▲ 11.93
5:55.16
▼ 4.77
—
5:43.42
▲ 11.74
5:39.17
▲ 4.25
5:20.44
▲ 18.73
5:38.97
▼ 18.53
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1000 Free SCY
—
—
—
12:29.27
—
—
—
—
—
—
—
50 Back SCY
46.06
35.61
▲ 10.45
31.60
▲ 4.01
29.99
▲ 1.61
30.00
▼ 0.01
—
28.27
▲ 1.73
27.63
▲ 0.64
26.30
▲ 1.33
26.94
▼ 0.64
27.32
▼ 0.38
100 Back SCY
1:48.71
1:14.85
▲ 33.86
1:06.04
▲ 8.81
1:05.01
▲ 1.03
1:04.38
▲ 0.63
1:02.79
▲ 1.59
1:01.01
▲ 1.78
59.20
▲ 1.81
56.67
▲ 2.53
58.15
▼ 1.48
58.08
▲ 0.07
200 Back SCY
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—
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2:23.68
2:24.99
▼ 1.31
2:17.10
▲ 7.89
2:13.89
▲ 3.21
2:09.85
▲ 4.04
2:05.78
▲ 4.07
2:13.85
▼ 8.07
2:08.10
▲ 5.75
50 Breast SCY
47.16
40.35
▲ 6.81
36.39
▲ 3.96
34.87
▲ 1.52
34.62
▲ 0.25
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—
—
—
—
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100 Breast SCY
1:51.01
1:27.66
▲ 23.35
1:19.78
▲ 7.88
1:18.66
▲ 1.12
1:12.18
▲ 6.48
1:15.78
▼ 3.60
1:12.61
▲ 3.17
1:11.95
▲ 0.66
1:10.35
▲ 1.60
1:07.08
▲ 3.27
1:07.39
▼ 0.31
200 Breast SCY
—
—
—
2:53.43
2:54.39
▼ 0.96
—
2:52.64
▲ 1.75
2:39.09
▲ 13.55
—
2:34.89
▲ 4.20
—
50 Fly SCY
45.52
32.72
▲ 12.80
29.41
▲ 3.31
28.16
▲ 1.25
27.68
▲ 0.48
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—
—
—
25.98
▲ 1.70
—
100 Fly SCY
—
1:18.35
1:06.21
▲ 12.14
1:06.17
▲ 0.04
1:02.09
▲ 4.08
1:03.72
▼ 1.63
1:00.15
▲ 3.57
58.71
▲ 1.44
57.44
▲ 1.27
56.75
▲ 0.69
57.72
▼ 0.97
200 Fly SCY
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—
—
2:36.32
2:31.05
▲ 5.27
—
2:16.30
▲ 14.75
2:12.56
▲ 3.74
2:08.96
▲ 3.60
2:13.57
▼ 4.61
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100 IM SCY
1:39.46
1:16.30
▲ 23.16
1:07.88
▲ 8.42
1:06.54
▲ 1.34
1:08.91
▼ 2.37
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—
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59.69
▲ 9.22
1:00.60
▼ 0.91
200 IM SCY
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2:56.18
2:36.11
▲ 20.07
2:24.79
▲ 11.32
2:22.82
▲ 1.97
2:29.10
▼ 6.28
2:18.14
▲ 10.96
2:14.83
▲ 3.31
2:08.59
▲ 6.24
2:18.07
▼ 9.48
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400 IM SCY
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—
—
—
5:17.60
—
5:07.48
▲ 10.12
4:47.48
▲ 20.00
4:41.19
▲ 6.29
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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.