Swimmer profile
Callen Koyama
Male13-14Cerritos Aquatic ClubSCS · WESTERN
SeasonUSA Swimming season runs Sept – Aug
Event
2021–22
2022–23
2023–24
2024–25
2025–26
50 Free LCM
40.78
40.35
▲ 0.43
39.77
▲ 0.58
35.97
▲ 3.80
33.65
▲ 2.32
100 Free LCM
1:33.02
1:25.58
▲ 7.44
1:27.86
▼ 2.28
1:16.86
▲ 11.00
1:12.76
▲ 4.10
200 Free LCM
3:21.43
3:28.36
▼ 6.93
3:04.45
▲ 23.91
—
2:34.40
▲ 30.05
400 Free LCM
—
—
—
—
5:23.22
800 Free LCM
—
—
—
—
10:54.54
1500 Free LCM
—
—
—
—
20:10.14
50 Back LCM
50.56
46.40
▲ 4.16
45.56
▲ 0.84
42.22
▲ 3.34
40.99
▲ 1.23
100 Back LCM
—
1:41.03
1:35.79
▲ 5.24
1:28.09
▲ 7.70
1:27.67
▲ 0.42
200 Back LCM
—
—
—
—
3:00.45
50 Breast LCM
56.15
55.40
▲ 0.75
52.23
▲ 3.17
41.96
▲ 10.27
39.43
▲ 2.53
100 Breast LCM
2:03.16
1:54.27
▲ 8.89
1:49.64
▲ 4.63
1:31.69
▲ 17.95
1:26.19
▲ 5.50
200 Breast LCM
—
—
—
3:18.71
3:07.47
▲ 11.24
50 Fly LCM
57.22
57.50
▼ 0.28
49.05
▲ 8.45
44.38
▲ 4.67
40.37
▲ 4.01
100 Fly LCM
—
1:57.38
1:53.26
▲ 4.12
—
—
200 IM LCM
3:50.32
3:44.45
▲ 5.87
3:25.40
▲ 19.05
3:12.15
▲ 13.25
2:57.57
▲ 14.58
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.