Swimmer profile
Dagny Byer
Female15-16Palo Alto Stanford AquaticsPC · WESTERN
SeasonUSA Swimming season runs Sept – Aug
Event
2017–18
2018–19
2021–22
2022–23
2023–24
2024–25
2025–26
50 Free LCM
41.16
37.10
▲ 4.06
31.12
▲ 5.98
31.31
▼ 0.19
31.12
▲ 0.19
29.91
▲ 1.21
29.02
▲ 0.89
100 Free LCM
1:33.18
1:24.26
▲ 8.92
1:06.68
▲ 17.58
1:07.21
▼ 0.53
1:07.60
▼ 0.39
1:03.88
▲ 3.72
1:03.45
▲ 0.43
200 Free LCM
—
3:15.58
2:33.90
▲ 41.68
2:35.92
▼ 2.02
2:30.32
▲ 5.60
2:18.05
▲ 12.27
2:17.01
▲ 1.04
400 Free LCM
—
—
5:30.18
5:36.19
▼ 6.01
5:27.21
▲ 8.98
4:59.36
▲ 27.85
4:51.02
▲ 8.34
800 Free LCM
—
—
—
—
11:00.82
10:21.91
▲ 38.91
10:06.86
▲ 15.05
1500 Free LCM
—
—
—
21:05.08
20:39.75
▲ 25.33
19:29.22
▲ 70.53
—
50 Back LCM
49.07
46.86
▲ 2.21
41.37
▲ 5.49
—
—
—
—
100 Back LCM
—
1:44.25
—
1:25.30
▲ 18.95
1:22.13
▲ 3.17
—
—
200 Back LCM
—
—
—
3:03.82
2:55.54
▲ 8.28
2:46.56
▲ 8.98
—
50 Breast LCM
—
46.98
41.81
▲ 5.17
—
—
—
37.26
▲ 4.55
100 Breast LCM
2:05.62
1:47.26
▲ 18.36
1:31.12
▲ 16.14
1:29.96
▲ 1.16
1:27.34
▲ 2.62
1:23.17
▲ 4.17
1:23.50
▼ 0.33
200 Breast LCM
—
—
3:19.95
—
3:10.78
▲ 9.17
2:58.96
▲ 11.82
3:00.28
▼ 1.32
50 Fly LCM
51.84
47.77
▲ 4.07
39.32
▲ 8.45
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—
—
—
100 Fly LCM
—
2:04.58
1:35.82
▲ 28.76
—
—
1:22.88
▲ 12.94
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200 IM LCM
—
3:43.86
3:02.18
▲ 41.68
—
2:54.43
▲ 7.75
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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.