Swimmer profile
Jack Mahaffey
Male17-18Central Ohio AquaticsOH · CENTRAL
SeasonUSA Swimming season runs Sept – Aug
Event
2017–18
2018–19
2020–21
2021–22
2022–23
2023–24
2024–25
2025–26
50 Free LCM
38.46
35.40
▲ 3.06
32.70
▲ 2.70
31.16
▲ 1.54
28.77
▲ 2.39
27.02
▲ 1.75
25.69
▲ 1.33
24.59
▲ 1.10
100 Free LCM
1:28.58
1:20.31
▲ 8.27
1:11.88
▲ 8.43
1:08.42
▲ 3.46
1:04.27
▲ 4.15
1:00.73
▲ 3.54
56.43
▲ 4.30
56.24
▲ 0.19
200 Free LCM
—
2:54.53
—
2:29.54
▲ 24.99
2:22.95
▲ 6.59
2:25.76
▼ 2.81
2:15.73
▲ 10.03
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400 Free LCM
—
—
—
—
—
5:00.27
—
—
50 Back LCM
40.73
37.35
▲ 3.38
34.17
▲ 3.18
31.70
▲ 2.47
29.99
▲ 1.71
28.14
▲ 1.85
26.38
▲ 1.76
26.10
▲ 0.28
100 Back LCM
1:29.70
1:24.66
▲ 5.04
1:14.61
▲ 10.05
1:09.55
▲ 5.06
1:04.66
▲ 4.89
1:00.99
▲ 3.67
57.98
▲ 3.01
56.93
▲ 1.05
200 Back LCM
—
—
2:55.44
2:33.14
▲ 22.30
2:26.90
▲ 6.24
2:23.04
▲ 3.86
2:13.06
▲ 9.98
2:08.54
▲ 4.52
50 Breast LCM
56.89
50.30
▲ 6.59
45.01
▲ 5.29
—
—
36.97
▲ 8.04
35.85
▲ 1.12
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100 Breast LCM
2:03.58
1:48.83
▲ 14.75
—
1:26.05
▲ 22.78
1:22.48
▲ 3.57
1:23.03
▼ 0.55
1:20.80
▲ 2.23
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200 Breast LCM
—
—
—
3:13.73
3:07.54
▲ 6.19
—
—
—
50 Fly LCM
42.47
37.86
▲ 4.61
36.11
▲ 1.75
—
—
31.15
▲ 4.96
26.63
▲ 4.52
26.24
▲ 0.39
100 Fly LCM
—
—
1:21.55
1:15.07
▲ 6.48
1:09.29
▲ 5.78
1:05.61
▲ 3.68
1:01.92
▲ 3.69
58.16
▲ 3.76
200 Fly LCM
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—
—
—
—
2:46.69
—
—
200 IM LCM
3:55.03
3:12.97
▲ 42.06
—
2:38.73
▲ 34.24
2:34.75
▲ 3.98
2:29.78
▲ 4.97
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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.