Swimmer profile
Mason Shantz
Male17-18Allegheny North Swim ClubAM · EASTERN
SeasonUSA Swimming season runs Sept – Aug
Event
2017–18
2018–19
2020–21
2021–22
2022–23
2024–25
2025–26
50 Free LCM
36.07
32.40
▲ 3.67
29.02
▲ 3.38
27.64
▲ 1.38
—
25.92
▲ 1.72
23.26
▲ 2.66
100 Free LCM
1:20.78
—
1:06.53
▲ 14.25
1:01.49
▲ 5.04
59.00
▲ 2.49
—
—
200 Free LCM
—
2:43.06
2:25.00
▲ 18.06
2:16.86
▲ 8.14
2:16.20
▲ 0.66
—
2:10.72
▲ 5.48
400 Free LCM
—
—
5:18.50
4:53.80
▲ 24.70
—
—
—
50 Back LCM
48.34
40.90
▲ 7.44
—
—
—
—
—
100 Back LCM
1:41.65
1:30.39
▲ 11.26
1:22.16
▲ 8.23
1:08.56
▲ 13.60
1:07.97
▲ 0.59
1:07.73
▲ 0.24
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200 Back LCM
—
—
3:01.33
2:30.90
▲ 30.43
—
—
—
50 Breast LCM
55.12
49.65
▲ 5.47
—
—
—
—
—
100 Breast LCM
—
1:51.15
1:31.96
▲ 19.19
1:29.40
▲ 2.56
1:20.25
▲ 9.15
—
—
50 Fly LCM
46.27
37.80
▲ 8.47
—
—
—
—
—
100 Fly LCM
—
1:31.01
1:17.41
▲ 13.60
1:10.65
▲ 6.76
—
1:02.55
▲ 8.10
1:01.57
▲ 0.98
200 IM LCM
—
3:12.73
—
2:34.44
▲ 38.29
2:29.14
▲ 5.30
2:28.62
▲ 0.52
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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.