Swimmer profile
Mason Leach
MaleOpen / SeniorUniversity of PittsburghOR · WESTERNCollege athlete · University of PittsburghD1
SeasonUSA Swimming season runs Sept – Aug
Event
2013–14
2014–15
2015–16
2016–17
2017–18
2018–19
2020–21
2021–22
2022–23
2023–24
2024–25
2025–26
50 Free LCM
48.44
39.52
▲ 8.92
38.01
▲ 1.51
32.88
▲ 5.13
31.23
▲ 1.65
28.33
▲ 2.90
25.63
▲ 2.70
25.46
▲ 0.17
24.16
▲ 1.30
24.20
▼ 0.04
24.75
▼ 0.55
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100 Free LCM
1:48.51
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1:25.69
▲ 22.82
1:18.44
▲ 7.25
1:09.45
▲ 8.99
1:03.74
▲ 5.71
59.39
▲ 4.35
55.50
▲ 3.89
55.36
▲ 0.14
53.81
▲ 1.55
54.21
▼ 0.40
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200 Free LCM
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3:23.73
3:02.03
▲ 21.70
2:45.03
▲ 17.00
2:36.34
▲ 8.69
2:16.87
▲ 19.47
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2:02.53
▲ 14.34
2:05.88
▼ 3.35
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400 Free LCM
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—
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5:15.73
4:41.65
▲ 34.08
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4:33.28
▲ 8.37
4:24.41
▲ 8.87
4:26.03
▼ 1.62
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800 Free LCM
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—
—
—
—
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9:19.20
9:19.45
▼ 0.25
9:16.17
▲ 3.28
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50 Back LCM
1:01.80
47.62
▲ 14.18
44.72
▲ 2.90
40.09
▲ 4.63
34.66
▲ 5.43
32.17
▲ 2.49
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27.49
▲ 4.68
27.20
▲ 0.29
27.13
▲ 0.07
25.87
▲ 1.26
26.12
▼ 0.25
100 Back LCM
1:54.11
1:49.08
▲ 5.03
1:43.50
▲ 5.58
1:29.84
▲ 13.66
1:19.52
▲ 10.32
1:11.99
▲ 7.53
59.82
▲ 12.17
58.60
▲ 1.22
57.28
▲ 1.32
56.47
▲ 0.81
55.04
▲ 1.43
56.94
▼ 1.90
200 Back LCM
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2:43.51
2:18.40
▲ 25.11
2:15.63
▲ 2.77
2:16.56
▼ 0.93
2:13.81
▲ 2.75
2:03.53
▲ 10.28
2:07.21
▼ 3.68
50 Breast LCM
57.14
47.39
▲ 9.75
42.86
▲ 4.53
39.47
▲ 3.39
35.65
▲ 3.82
35.43
▲ 0.22
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100 Breast LCM
2:04.05
1:46.68
▲ 17.37
1:42.23
▲ 4.45
1:31.32
▲ 10.91
1:24.62
▲ 6.70
1:14.82
▲ 9.80
1:11.19
▲ 3.63
1:17.86
▼ 6.67
1:04.59
▲ 13.27
1:05.93
▼ 1.34
1:09.39
▼ 3.46
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200 Breast LCM
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3:02.06
2:38.94
▲ 23.12
2:34.09
▲ 4.85
2:38.56
▼ 4.47
2:46.69
▼ 8.13
2:44.54
▲ 2.15
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50 Fly LCM
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43.34
45.66
▼ 2.32
41.59
▲ 4.07
33.21
▲ 8.38
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25.04
▲ 8.17
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100 Fly LCM
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1:32.34
1:24.62
▲ 7.72
1:12.34
▲ 12.28
1:03.02
▲ 9.32
56.06
▲ 6.96
54.92
▲ 1.14
54.64
▲ 0.28
53.85
▲ 0.79
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200 Fly LCM
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—
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2:35.98
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2:29.37
▲ 6.61
2:27.58
▲ 1.79
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200 IM LCM
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3:45.90
3:18.25
▲ 27.65
3:04.77
▲ 13.48
2:46.26
▲ 18.51
2:30.67
▲ 15.59
2:16.71
▲ 13.96
2:21.51
▼ 4.80
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2:17.37
▲ 4.14
2:13.30
▲ 4.07
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400 IM LCM
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5:00.86
5:07.88
▼ 7.02
5:10.59
▼ 2.71
5:02.36
▲ 8.23
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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.