Swimmer profile
Ko Yamamoto
Male11-12Center Grove Aquatic ClubIN · 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
1:00.01
46.29
▲ 13.72
36.22
▲ 10.07
32.81
▲ 3.41
29.64
▲ 3.17
27.28
▲ 2.36
25.36
▲ 1.92
100 Free SCY
—
1:56.34
1:17.54
▲ 38.80
1:10.23
▲ 7.31
1:05.20
▲ 5.03
57.88
▲ 7.32
54.82
▲ 3.06
200 Free SCY
—
—
2:48.32
2:39.82
▲ 8.50
2:27.83
▲ 11.99
2:08.83
▲ 19.00
1:58.65
▲ 10.18
500 Free SCY
—
14:04.78
—
—
6:38.08
▲ 446.70
6:15.42
▲ 22.66
5:24.84
▲ 50.58
1000 Free SCY
—
—
—
—
—
—
12:13.16
50 Back SCY
—
58.92
40.73
▲ 18.19
38.80
▲ 1.93
36.00
▲ 2.80
31.96
▲ 4.04
29.45
▲ 2.51
100 Back SCY
—
—
1:44.36
1:20.80
▲ 23.56
1:17.07
▲ 3.73
1:09.26
▲ 7.81
1:04.42
▲ 4.84
50 Breast SCY
—
1:37.05
53.81
▲ 43.24
45.05
▲ 8.76
42.31
▲ 2.74
37.59
▲ 4.72
35.05
▲ 2.54
100 Breast SCY
—
—
2:07.98
1:45.13
▲ 22.85
1:31.09
▲ 14.04
1:23.99
▲ 7.10
1:15.44
▲ 8.55
50 Fly SCY
—
—
—
36.29
35.20
▲ 1.09
31.80
▲ 3.40
29.68
▲ 2.12
100 Fly SCY
—
—
—
1:31.53
1:19.28
▲ 12.25
1:10.16
▲ 9.12
1:05.92
▲ 4.24
100 IM SCY
—
—
1:41.37
1:28.62
▲ 12.75
—
—
—
200 IM SCY
—
—
3:17.16
3:00.53
▲ 16.63
2:45.05
▲ 15.48
2:31.55
▲ 13.50
2:17.80
▲ 13.75
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.