Swimmer profile
Sofia Nielson
Female15-16Tri-city Channel CatsIE · WESTERN
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
39.45
35.65
▲ 3.80
32.16
▲ 3.49
29.78
▲ 2.38
29.45
▲ 0.33
28.55
▲ 0.90
28.65
▼ 0.10
—
100 Free LCM
1:38.89
—
—
—
1:02.85
▲ 36.04
1:01.01
▲ 1.84
1:00.03
▲ 0.98
1:01.48
▼ 1.45
200 Free LCM
—
3:05.99
2:35.15
▲ 30.84
2:20.73
▲ 14.42
2:15.60
▲ 5.13
2:17.99
▼ 2.39
2:18.19
▼ 0.20
2:17.47
▲ 0.72
400 Free LCM
—
—
—
—
4:48.99
4:44.95
▲ 4.04
4:44.64
▲ 0.31
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800 Free LCM
—
—
—
—
—
10:00.87
—
10:01.41
▼ 0.54
50 Back LCM
47.65
48.45
▼ 0.80
—
—
—
—
—
—
100 Back LCM
1:39.12
1:33.77
▲ 5.35
1:20.67
▲ 13.10
1:16.04
▲ 4.63
1:15.93
▲ 0.11
1:13.62
▲ 2.31
1:13.15
▲ 0.47
1:15.15
▼ 2.00
200 Back LCM
—
—
—
—
—
2:38.76
2:37.39
▲ 1.37
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50 Breast LCM
55.88
48.48
▲ 7.40
40.62
▲ 7.86
—
—
—
—
35.68
▲ 4.94
100 Breast LCM
1:54.68
1:46.36
▲ 8.32
1:27.36
▲ 19.00
1:21.58
▲ 5.78
1:16.24
▲ 5.34
1:14.26
▲ 1.98
1:12.68
▲ 1.58
1:15.30
▼ 2.62
200 Breast LCM
—
—
—
2:54.63
2:44.24
▲ 10.39
2:43.21
▲ 1.03
2:40.33
▲ 2.88
2:43.05
▼ 2.72
50 Fly LCM
—
43.27
—
—
—
—
—
—
100 Fly LCM
—
1:41.38
1:30.04
▲ 11.34
1:16.15
▲ 13.89
—
1:11.98
▲ 4.17
1:09.20
▲ 2.78
1:14.20
▼ 5.00
200 IM LCM
—
3:16.37
2:51.04
▲ 25.33
2:35.92
▲ 15.12
2:29.85
▲ 6.07
2:29.40
▲ 0.45
2:28.48
▲ 0.92
2:31.43
▼ 2.95
400 IM LCM
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—
—
—
5:26.51
5:33.98
▼ 7.47
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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.