Swimmer profile
Sean Diffenderfer
MaleOpen / SeniorSpartan Aquatic ClubMI · CENTRAL
SeasonUSA Swimming season runs Sept – Aug
Event
2017–18
2018–19
2019–20
2020–21
2021–22
2022–23
2023–24
2025–26
50 Free LCM
28.87
28.18
▲ 0.69
—
25.95
▲ 2.23
26.46
▼ 0.51
26.81
▼ 0.35
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—
100 Free LCM
1:01.93
1:00.73
▲ 1.20
—
56.17
▲ 4.56
58.20
▼ 2.03
59.95
▼ 1.75
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—
200 Free LCM
2:15.73
2:03.89
▲ 11.84
—
2:04.04
▼ 0.15
2:04.35
▼ 0.31
2:04.94
▼ 0.59
1:59.61
▲ 5.33
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400 Free LCM
4:43.18
4:21.90
▲ 21.28
4:31.42
▼ 9.52
4:17.96
▲ 13.46
4:19.61
▼ 1.65
4:24.65
▼ 5.04
4:14.55
▲ 10.10
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800 Free LCM
—
8:57.67
—
8:40.12
▲ 17.55
8:52.58
▼ 12.46
9:29.41
▼ 36.83
—
9:15.58
▲ 13.83
1500 Free LCM
—
17:14.64
—
16:54.04
▲ 20.60
17:00.88
▼ 6.84
17:30.86
▼ 29.98
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50 Back LCM
37.95
—
—
—
—
—
—
—
100 Back LCM
1:15.72
1:10.73
▲ 4.99
—
—
1:06.67
▲ 4.06
1:05.73
▲ 0.94
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—
200 Back LCM
—
2:36.42
—
2:31.40
▲ 5.02
2:40.09
▼ 8.69
2:28.83
▲ 11.26
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100 Breast LCM
—
1:23.82
—
—
1:24.62
▼ 0.80
1:22.02
▲ 2.60
—
—
200 Breast LCM
—
3:06.45
—
—
—
2:57.77
▲ 8.68
—
—
50 Fly LCM
—
28.54
—
—
—
—
—
—
100 Fly LCM
1:08.34
1:08.89
▼ 0.55
—
—
1:07.70
▲ 1.19
1:04.35
▲ 3.35
—
—
200 Fly LCM
2:43.94
2:36.16
▲ 7.78
—
2:33.85
▲ 2.31
—
—
—
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200 IM LCM
2:35.87
2:25.92
▲ 9.95
—
2:26.46
▼ 0.54
2:31.17
▼ 4.71
2:25.28
▲ 5.89
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—
400 IM LCM
5:27.71
5:20.80
▲ 6.91
—
5:19.70
▲ 1.10
5:18.01
▲ 1.69
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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.