Swimmer profile
Jack Mahaffey
Male17-18Central Ohio AquaticsOH · CENTRAL
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
44.94
35.07
▲ 9.87
32.61
▲ 2.46
31.84
▲ 0.77
28.41
▲ 3.43
27.89
▲ 0.52
25.75
▲ 2.14
23.44
▲ 2.31
21.78
▲ 1.66
20.83
▲ 0.95
100 Free SCY
1:41.79
1:20.88
▲ 20.91
1:12.91
▲ 7.97
1:10.21
▲ 2.70
1:03.76
▲ 6.45
1:01.53
▲ 2.23
56.98
▲ 4.55
54.01
▲ 2.97
47.63
▲ 6.38
47.92
▼ 0.29
200 Free SCY
—
—
2:34.54
2:27.94
▲ 6.60
2:18.15
▲ 9.79
2:20.69
▼ 2.54
2:08.01
▲ 12.68
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—
—
500 Free SCY
—
—
—
—
—
—
5:42.80
—
—
—
50 Back SCY
49.97
37.85
▲ 12.12
35.43
▲ 2.42
32.19
▲ 3.24
29.92
▲ 2.27
29.67
▲ 0.25
27.22
▲ 2.45
25.72
▲ 1.50
23.10
▲ 2.62
22.37
▲ 0.73
100 Back SCY
—
1:21.47
1:21.00
▲ 0.47
1:09.61
▲ 11.39
1:06.42
▲ 3.19
1:01.89
▲ 4.53
57.23
▲ 4.66
52.88
▲ 4.35
49.37
▲ 3.51
48.14
▲ 1.23
200 Back SCY
—
—
—
2:35.00
2:23.58
▲ 11.42
2:18.28
▲ 5.30
2:07.48
▲ 10.80
2:01.59
▲ 5.89
1:53.71
▲ 7.88
1:50.19
▲ 3.52
50 Breast SCY
—
—
46.72
45.32
▲ 1.40
—
—
—
—
—
—
100 Breast SCY
—
—
—
1:41.26
—
1:20.22
▲ 21.04
1:13.42
▲ 6.80
1:10.42
▲ 3.00
1:08.53
▲ 1.89
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200 Breast SCY
—
—
—
—
—
3:03.04
—
—
—
—
50 Fly SCY
—
41.25
34.69
▲ 6.56
32.05
▲ 2.64
31.13
▲ 0.92
—
—
—
—
23.62
▲ 7.51
100 Fly SCY
—
—
—
1:16.03
1:13.14
▲ 2.89
1:08.12
▲ 5.02
1:02.28
▲ 5.84
57.90
▲ 4.38
55.52
▲ 2.38
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200 Fly SCY
—
—
—
—
—
2:52.85
2:31.54
▲ 21.31
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—
—
100 IM SCY
—
—
1:22.48
1:15.82
▲ 6.66
1:12.13
▲ 3.69
—
1:04.63
▲ 7.50
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—
—
200 IM SCY
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—
—
2:54.32
2:39.43
▲ 14.89
2:26.99
▲ 12.44
2:14.91
▲ 12.08
2:12.38
▲ 2.53
2:08.99
▲ 3.39
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400 IM SCY
—
—
—
—
—
5:22.61
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—
—
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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.