Swimmer profile
Leah Mason
Female15-16Black Hawk Area Swim TeamIA · CENTRAL
SeasonUSA Swimming season runs Sept – Aug
Event
2015–16
2016–17
2017–18
2018–19
2020–21
2021–22
2022–23
2023–24
2024–25
50 Free LCM
1:07.08
57.29
▲ 9.79
44.10
▲ 13.19
40.25
▲ 3.85
31.89
▲ 8.36
29.27
▲ 2.62
28.53
▲ 0.74
27.88
▲ 0.65
28.86
▼ 0.98
100 Free LCM
—
2:25.35
1:44.07
▲ 41.28
1:32.01
▲ 12.06
1:13.27
▲ 18.74
1:05.75
▲ 7.52
1:05.69
▲ 0.06
1:01.86
▲ 3.83
1:02.21
▼ 0.35
200 Free LCM
—
—
3:47.15
3:47.17
▼ 0.02
2:37.54
▲ 69.63
2:21.98
▲ 15.56
2:23.34
▼ 1.36
2:20.11
▲ 3.23
2:23.86
▼ 3.75
400 Free LCM
—
—
—
7:15.22
6:02.17
▲ 73.05
5:04.45
▲ 57.72
5:00.66
▲ 3.79
4:53.47
▲ 7.19
5:00.92
▼ 7.45
800 Free LCM
—
—
—
—
—
10:51.84
—
—
—
50 Back LCM
1:15.62
1:00.07
▲ 15.55
50.47
▲ 9.60
46.87
▲ 3.60
40.32
▲ 6.55
36.03
▲ 4.29
37.55
▼ 1.52
33.09
▲ 4.46
33.43
▼ 0.34
100 Back LCM
—
—
1:56.18
1:56.20
▼ 0.02
1:28.72
▲ 27.48
1:22.96
▲ 5.76
1:21.01
▲ 1.95
1:11.34
▲ 9.67
1:15.15
▼ 3.81
200 Back LCM
—
—
—
—
—
—
2:56.78
2:47.38
▲ 9.40
—
50 Breast LCM
—
—
1:08.41
1:06.61
▲ 1.80
—
—
—
46.56
▲ 20.05
—
100 Breast LCM
—
—
2:38.75
2:35.82
▲ 2.93
—
1:50.21
▲ 45.61
—
—
—
50 Fly LCM
—
—
51.23
42.40
▲ 8.83
33.34
▲ 9.06
31.21
▲ 2.13
31.87
▼ 0.66
29.23
▲ 2.64
29.63
▼ 0.40
100 Fly LCM
—
—
—
1:55.29
1:28.64
▲ 26.65
1:08.60
▲ 20.04
1:06.93
▲ 1.67
1:05.86
▲ 1.07
1:05.82
▲ 0.04
200 Fly LCM
—
—
—
—
3:14.28
2:47.71
▲ 26.57
2:47.29
▲ 0.42
2:38.77
▲ 8.52
—
200 IM LCM
—
—
—
4:17.58
3:18.42
▲ 59.16
2:59.54
▲ 18.88
2:49.40
▲ 10.14
—
2:46.46
▲ 2.94
400 IM LCM
—
—
—
—
7:00.72
—
6:19.51
▲ 41.21
—
—
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.