Swimmer profile
Callen Koyama
Male13-14Cerritos Aquatic ClubSCS · WESTERN
SeasonUSA Swimming season runs Sept – Aug
Event
2019–20
2021–22
2022–23
2023–24
2024–25
2025–26
50 Free SCY
52.60
38.32
▲ 14.28
34.51
▲ 3.81
34.59
▼ 0.08
31.97
▲ 2.62
29.08
▲ 2.89
100 Free SCY
—
1:31.52
1:17.50
▲ 14.02
1:17.12
▲ 0.38
1:09.40
▲ 7.72
1:02.48
▲ 6.92
200 Free SCY
—
3:07.05
2:51.94
▲ 15.11
2:47.55
▲ 4.39
2:36.91
▲ 10.64
2:12.69
▲ 24.22
500 Free SCY
—
—
—
7:32.31
—
5:40.76
▲ 111.55
1000 Free SCY
—
—
—
—
—
11:52.29
1650 Free SCY
—
—
—
—
—
19:37.48
50 Back SCY
—
43.48
43.64
▼ 0.16
40.29
▲ 3.35
36.61
▲ 3.68
35.60
▲ 1.01
100 Back SCY
—
1:58.34
1:29.78
▲ 28.56
1:27.45
▲ 2.33
1:17.47
▲ 9.98
1:13.79
▲ 3.68
50 Breast SCY
1:05.81
49.10
▲ 16.71
46.75
▲ 2.35
45.20
▲ 1.55
39.35
▲ 5.85
35.53
▲ 3.82
100 Breast SCY
—
1:50.67
1:42.55
▲ 8.12
1:36.58
▲ 5.97
1:25.54
▲ 11.04
1:15.82
▲ 9.72
200 Breast SCY
—
—
—
—
3:13.54
2:45.12
▲ 28.42
50 Fly SCY
—
46.85
40.43
▲ 6.42
42.60
▼ 2.17
37.64
▲ 4.96
37.10
▲ 0.54
100 Fly SCY
—
—
1:43.82
1:34.10
▲ 9.72
1:24.61
▲ 9.49
1:18.70
▲ 5.91
100 IM SCY
—
1:33.62
1:30.64
▲ 2.98
1:26.53
▲ 4.11
1:23.27
▲ 3.26
—
200 IM SCY
—
3:37.01
—
3:09.27
▲ 27.74
2:54.48
▲ 14.79
2:33.79
▲ 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.