Swimmer profile
Mason Nishimura
Male15-16Kamehameha Swim ClubHI · WESTERN
SeasonUSA Swimming season runs Sept – Aug
Event
2020–21
2021–22
2022–23
2023–24
2024–25
2025–26
50 Free SCY
—
31.35
27.84
▲ 3.51
26.05
▲ 1.79
25.10
▲ 0.95
24.43
▲ 0.67
100 Free SCY
1:33.50
1:16.93
▲ 16.57
1:02.69
▲ 14.24
58.67
▲ 4.02
54.97
▲ 3.70
54.18
▲ 0.79
200 Free SCY
—
2:51.34
2:17.48
▲ 33.86
2:16.18
▲ 1.30
2:01.96
▲ 14.22
2:01.52
▲ 0.44
500 Free SCY
—
—
6:28.09
6:22.52
▲ 5.57
6:01.31
▲ 21.21
5:38.50
▲ 22.81
1000 Free SCY
—
—
—
—
12:23.54
—
50 Back SCY
56.75
41.89
▲ 14.86
39.79
▲ 2.10
35.83
▲ 3.96
32.63
▲ 3.20
—
100 Back SCY
—
1:33.02
1:17.88
▲ 15.14
1:12.42
▲ 5.46
1:06.08
▲ 6.34
1:05.29
▲ 0.79
200 Back SCY
—
—
—
2:40.31
2:24.80
▲ 15.51
2:26.06
▼ 1.26
50 Breast SCY
—
47.66
40.58
▲ 7.08
38.40
▲ 2.18
36.92
▲ 1.48
—
100 Breast SCY
—
1:47.67
1:27.51
▲ 20.16
1:25.75
▲ 1.76
1:16.54
▲ 9.21
1:15.02
▲ 1.52
200 Breast SCY
—
—
—
3:03.88
2:48.08
▲ 15.80
2:44.65
▲ 3.43
50 Fly SCY
—
38.17
31.76
▲ 6.41
29.28
▲ 2.48
29.07
▲ 0.21
27.48
▲ 1.59
100 Fly SCY
—
1:23.19
1:15.10
▲ 8.09
1:08.31
▲ 6.79
1:02.01
▲ 6.30
59.76
▲ 2.25
200 Fly SCY
—
—
—
2:40.38
2:28.81
▲ 11.57
2:19.10
▲ 9.71
100 IM SCY
—
1:28.99
—
1:10.20
▲ 18.79
1:09.66
▲ 0.54
—
200 IM SCY
—
3:26.57
2:42.72
▲ 43.85
2:38.81
▲ 3.91
2:24.82
▲ 13.99
2:19.50
▲ 5.32
400 IM SCY
—
—
6:05.34
5:41.96
▲ 23.38
5:20.95
▲ 21.01
5:00.26
▲ 20.69
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.