Swimmer profile
Catherine Dieffenthaller
Female17-18Saint Petersburg AquaticsFL · SOUTHERN
SeasonUSA Swimming season runs Sept – Aug
Event
2016–17
2017–18
2018–19
2019–20
2020–21
2021–22
2022–23
2023–24
2024–25
2025–26
50 Free SCY
48.04
33.24
▲ 14.80
32.30
▲ 0.94
30.48
▲ 1.82
29.80
▲ 0.68
27.15
▲ 2.65
25.71
▲ 1.44
25.45
▲ 0.26
25.65
▼ 0.20
24.84
▲ 0.81
100 Free SCY
—
1:24.05
1:12.40
▲ 11.65
1:08.23
▲ 4.17
1:03.94
▲ 4.29
1:00.89
▲ 3.05
58.70
▲ 2.19
55.80
▲ 2.90
55.62
▲ 0.18
56.89
▼ 1.27
200 Free SCY
—
—
2:43.14
2:31.02
▲ 12.12
2:24.18
▲ 6.84
2:14.33
▲ 9.85
2:13.74
▲ 0.59
2:07.82
▲ 5.92
2:02.41
▲ 5.41
—
500 Free SCY
—
—
—
—
6:30.66
6:06.46
▲ 24.20
5:55.73
▲ 10.73
—
—
—
50 Back SCY
54.01
43.66
▲ 10.35
41.48
▲ 2.18
38.77
▲ 2.71
36.26
▲ 2.51
34.28
▲ 1.98
32.55
▲ 1.73
31.66
▲ 0.89
30.95
▲ 0.71
31.16
▼ 0.21
100 Back SCY
—
—
—
—
1:19.20
1:13.64
▲ 5.56
1:11.01
▲ 2.63
1:07.44
▲ 3.57
1:06.10
▲ 1.34
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50 Breast SCY
52.28
43.54
▲ 8.74
42.06
▲ 1.48
38.13
▲ 3.93
34.66
▲ 3.47
32.67
▲ 1.99
30.62
▲ 2.05
29.94
▲ 0.68
29.99
▼ 0.05
30.47
▼ 0.48
100 Breast SCY
—
1:38.58
1:32.10
▲ 6.48
1:21.39
▲ 10.71
1:15.21
▲ 6.18
1:09.65
▲ 5.56
1:07.60
▲ 2.05
1:04.89
▲ 2.71
1:03.63
▲ 1.26
1:02.49
▲ 1.14
200 Breast SCY
—
—
—
—
2:42.21
2:30.85
▲ 11.36
2:28.53
▲ 2.32
2:20.79
▲ 7.74
2:19.86
▲ 0.93
2:17.23
▲ 2.63
50 Fly SCY
—
55.28
44.69
▲ 10.59
40.91
▲ 3.78
36.65
▲ 4.26
31.36
▲ 5.29
30.12
▲ 1.24
29.02
▲ 1.10
28.47
▲ 0.55
—
100 Fly SCY
—
—
—
—
—
1:16.58
1:11.40
▲ 5.18
1:05.30
▲ 6.10
1:03.92
▲ 1.38
1:01.65
▲ 2.27
100 IM SCY
—
1:37.94
1:26.63
▲ 11.31
1:19.06
▲ 7.57
1:17.29
▲ 1.77
—
—
1:04.82
▲ 12.47
—
—
200 IM SCY
—
—
—
3:03.37
2:53.50
▲ 9.87
2:30.63
▲ 22.87
2:25.58
▲ 5.05
2:12.19
▲ 13.39
2:08.65
▲ 3.54
2:05.73
▲ 2.92
400 IM SCY
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—
—
—
—
5:19.22
—
—
—
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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.