Swimmer profile
Kosei Okano
Male13-14Supernova Swim TeamMI · CENTRAL
SeasonUSA Swimming season runs Sept – Aug
Event
2019–20
2020–21
2021–22
2022–23
2023–24
2024–25
2025–26
50 Free SCY
44.76
41.19
▲ 3.57
32.07
▲ 9.12
28.78
▲ 3.29
25.97
▲ 2.81
25.94
▲ 0.03
24.43
▲ 1.51
100 Free SCY
1:33.80
—
1:12.94
▲ 20.86
1:04.27
▲ 8.67
56.34
▲ 7.93
56.92
▼ 0.58
52.85
▲ 4.07
200 Free SCY
—
3:18.28
2:50.33
▲ 27.95
2:30.51
▲ 19.82
2:04.15
▲ 26.36
2:02.19
▲ 1.96
1:57.55
▲ 4.64
500 Free SCY
—
—
—
—
5:55.32
5:46.50
▲ 8.82
—
50 Back SCY
1:00.35
46.03
▲ 14.32
38.38
▲ 7.65
36.36
▲ 2.02
32.21
▲ 4.15
—
30.23
▲ 1.98
100 Back SCY
—
—
—
—
1:11.94
1:07.01
▲ 4.93
—
50 Breast SCY
1:09.29
57.78
▲ 11.51
40.59
▲ 17.19
39.66
▲ 0.93
35.92
▲ 3.74
33.97
▲ 1.95
31.07
▲ 2.90
100 Breast SCY
—
—
1:28.77
1:25.39
▲ 3.38
1:15.77
▲ 9.62
1:15.51
▲ 0.26
1:09.72
▲ 5.79
200 Breast SCY
—
—
—
3:02.95
2:59.94
▲ 3.01
2:45.80
▲ 14.14
2:47.30
▼ 1.50
50 Fly SCY
—
59.63
42.41
▲ 17.22
38.95
▲ 3.46
34.28
▲ 4.67
30.15
▲ 4.13
—
100 IM SCY
—
—
1:22.35
1:17.64
▲ 4.71
1:10.14
▲ 7.50
1:06.89
▲ 3.25
1:06.56
▲ 0.33
200 IM SCY
—
—
—
—
2:36.09
2:27.07
▲ 9.02
2:11.06
▲ 16.01
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.