Swimmer profile
Catherine Dieffenthaller
Female17-18Saint Petersburg AquaticsFL · SOUTHERN
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 LCM
1:00.02
47.92
▲ 12.10
39.25
▲ 8.67
37.61
▲ 1.64
—
33.32
▲ 4.29
31.16
▲ 2.16
29.36
▲ 1.80
29.47
▼ 0.11
30.39
▼ 0.92
28.08
▲ 2.31
100 Free LCM
2:23.66
—
1:32.33
▲ 51.33
1:24.82
▲ 7.51
1:19.70
▲ 5.12
1:12.94
▲ 6.76
1:11.49
▲ 1.45
1:05.60
▲ 5.89
1:04.02
▲ 1.58
—
1:03.78
▲ 0.24
200 Free LCM
—
—
—
3:02.36
2:55.91
▲ 6.45
—
2:37.61
▲ 18.30
—
2:20.66
▲ 16.95
—
—
400 Free LCM
—
—
—
—
—
—
5:37.17
—
—
—
—
50 Back LCM
1:06.62
1:02.16
▲ 4.46
—
46.22
▲ 15.94
—
41.64
▲ 4.58
38.24
▲ 3.40
—
—
35.79
▲ 2.45
—
100 Back LCM
—
—
—
1:42.11
—
—
—
1:19.85
▲ 22.26
1:16.61
▲ 3.24
—
1:14.59
▲ 2.02
50 Breast LCM
1:11.74
57.18
▲ 14.56
52.10
▲ 5.08
45.45
▲ 6.65
47.77
▼ 2.32
39.60
▲ 8.17
36.18
▲ 3.42
34.51
▲ 1.67
34.13
▲ 0.38
33.36
▲ 0.77
33.57
▼ 0.21
100 Breast LCM
—
2:02.64
1:55.93
▲ 6.71
1:39.32
▲ 16.61
1:40.23
▼ 0.91
1:23.46
▲ 16.77
1:18.88
▲ 4.58
1:14.62
▲ 4.26
1:14.15
▲ 0.47
1:13.60
▲ 0.55
1:12.61
▲ 0.99
200 Breast LCM
—
—
—
—
—
3:01.90
2:52.68
▲ 9.22
2:46.53
▲ 6.15
2:44.18
▲ 2.35
2:42.02
▲ 2.16
2:42.39
▼ 0.37
50 Fly LCM
—
1:10.85
—
50.16
▲ 20.69
—
40.79
▲ 9.37
35.73
▲ 5.06
34.59
▲ 1.14
31.89
▲ 2.70
32.55
▼ 0.66
29.90
▲ 2.65
100 Fly LCM
—
—
—
2:06.41
—
—
—
1:12.83
▲ 53.58
—
—
1:07.30
▲ 5.53
200 IM LCM
—
—
—
—
—
—
—
2:36.11
2:33.79
▲ 2.32
2:27.73
▲ 6.06
2:29.01
▼ 1.28
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.