Swimmer profile
Mason Thomas
Male15-16Sienna Premier AquaticsGU · SOUTHERN
SeasonUSA Swimming season runs Sept – Aug
Event
2017–18
2018–19
2019–20
2020–21
2021–22
2022–23
2023–24
2024–25
2025–26
50 Free SCY
1:02.23
41.77
▲ 20.46
38.04
▲ 3.73
36.40
▲ 1.64
30.68
▲ 5.72
28.26
▲ 2.42
26.34
▲ 1.92
24.68
▲ 1.66
23.57
▲ 1.11
100 Free SCY
—
1:39.61
1:23.71
▲ 15.90
1:26.49
▼ 2.78
1:07.29
▲ 19.20
1:02.33
▲ 4.96
57.92
▲ 4.41
53.11
▲ 4.81
52.97
▲ 0.14
200 Free SCY
—
—
3:06.09
3:13.81
▼ 7.72
2:37.62
▲ 36.19
2:23.98
▲ 13.64
2:10.92
▲ 13.06
1:57.23
▲ 13.69
2:01.44
▼ 4.21
500 Free SCY
—
—
—
8:15.85
6:47.50
▲ 88.35
6:29.18
▲ 18.32
5:54.74
▲ 34.44
5:49.56
▲ 5.18
5:56.19
▼ 6.63
1000 Free SCY
—
—
—
—
—
—
13:12.20
12:37.89
▲ 34.31
12:22.91
▲ 14.98
1650 Free SCY
—
—
—
—
—
22:59.90
—
20:16.85
▲ 163.05
—
50 Back SCY
—
50.95
44.12
▲ 6.83
45.08
▼ 0.96
40.23
▲ 4.85
35.23
▲ 5.00
—
—
—
100 Back SCY
—
1:55.82
1:41.40
▲ 14.42
—
1:28.39
▲ 13.01
1:13.87
▲ 14.52
1:15.95
▼ 2.08
1:10.71
▲ 5.24
1:08.32
▲ 2.39
200 Back SCY
—
—
—
—
3:01.51
—
2:43.82
▲ 17.69
2:34.58
▲ 9.24
—
50 Breast SCY
—
1:12.73
52.38
▲ 20.35
46.77
▲ 5.61
44.06
▲ 2.71
38.60
▲ 5.46
33.53
▲ 5.07
31.05
▲ 2.48
28.83
▲ 2.22
100 Breast SCY
—
—
1:57.82
1:47.60
▲ 10.22
1:39.62
▲ 7.98
1:27.63
▲ 11.99
1:11.11
▲ 16.52
1:05.82
▲ 5.29
1:01.64
▲ 4.18
200 Breast SCY
—
—
—
—
—
3:24.59
2:40.60
▲ 43.99
2:26.92
▲ 13.68
2:30.70
▼ 3.78
50 Fly SCY
—
—
44.76
44.16
▲ 0.60
35.52
▲ 8.64
33.39
▲ 2.13
29.77
▲ 3.62
26.92
▲ 2.85
—
100 Fly SCY
—
—
—
—
1:15.41
1:15.06
▲ 0.35
1:09.02
▲ 6.04
59.71
▲ 9.31
1:01.32
▼ 1.61
200 Fly SCY
—
—
—
—
—
—
—
2:31.77
2:27.93
▲ 3.84
100 IM SCY
—
2:07.54
1:36.47
▲ 31.07
1:36.81
▼ 0.34
1:29.13
▲ 7.68
1:18.48
▲ 10.65
—
1:03.71
▲ 14.77
—
200 IM SCY
—
—
—
—
2:46.84
2:43.98
▲ 2.86
2:25.87
▲ 18.11
2:16.39
▲ 9.48
2:07.51
▲ 8.88
400 IM SCY
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—
—
—
—
5:48.23
5:09.90
▲ 38.33
4:48.32
▲ 21.58
4:49.65
▼ 1.33
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.