Swimmer profile
Ann Tjeerdsma
Female15-16Pierre Swim TeamSD · CENTRAL
SeasonUSA Swimming season runs Sept – Aug
Event
2017–18
2018–19
2020–21
2021–22
2022–23
2023–24
2024–25
2025–26
50 Free LCM
56.17
41.41
▲ 14.76
37.56
▲ 3.85
36.00
▲ 1.56
34.14
▲ 1.86
34.48
▼ 0.34
34.72
▼ 0.24
33.91
▲ 0.81
100 Free LCM
2:02.72
1:37.71
▲ 25.01
1:20.26
▲ 17.45
1:17.80
▲ 2.46
1:14.43
▲ 3.37
1:15.63
▼ 1.20
1:16.07
▼ 0.44
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200 Free LCM
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3:30.46
—
2:56.20
▲ 34.26
2:50.45
▲ 5.75
2:47.51
▲ 2.94
2:49.46
▼ 1.95
2:47.05
▲ 2.41
400 Free LCM
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—
—
—
5:51.31
5:58.80
▼ 7.49
6:06.14
▼ 7.34
5:42.76
▲ 23.38
800 Free LCM
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—
—
—
—
12:37.43
12:30.00
▲ 7.43
12:03.77
▲ 26.23
1500 Free LCM
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—
—
—
—
—
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22:40.55
50 Back LCM
1:03.02
51.19
▲ 11.83
43.48
▲ 7.71
43.16
▲ 0.32
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—
—
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100 Back LCM
2:13.68
2:01.68
▲ 12.00
—
1:30.07
▲ 31.61
1:29.57
▲ 0.50
1:26.14
▲ 3.43
1:27.58
▼ 1.44
1:26.37
▲ 1.21
200 Back LCM
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—
—
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3:08.01
3:14.94
▼ 6.93
3:11.28
▲ 3.66
3:09.65
▲ 1.63
50 Breast LCM
1:10.83
57.24
▲ 13.59
51.92
▲ 5.32
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—
—
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100 Breast LCM
2:34.90
2:05.72
▲ 29.18
1:52.39
▲ 13.33
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—
1:43.29
▲ 9.10
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50 Fly LCM
—
51.12
43.26
▲ 7.86
42.52
▲ 0.74
—
—
42.03
▲ 0.49
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100 Fly LCM
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2:16.55
—
—
1:35.78
▲ 40.77
1:43.14
▼ 7.36
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200 IM LCM
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4:06.90
3:23.83
▲ 43.07
3:18.97
▲ 4.86
3:14.81
▲ 4.16
3:20.12
▼ 5.31
3:13.88
▲ 6.24
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400 IM LCM
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—
—
—
—
7:06.82
—
6:42.64
▲ 24.18
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.