Swimmer profile
Koa Dong
Male11-12Manoa AquaticsHI · WESTERN
SeasonUSA Swimming season runs Sept – Aug
Event
2023–24
2024–25
2025–26
50 Free LCM
48.43
37.83
▲ 10.60
36.64
▲ 1.19
100 Free LCM
1:41.68
1:29.00
▲ 12.68
1:25.08
▲ 3.92
200 Free LCM
—
3:24.43
—
400 Free LCM
—
—
7:03.77
50 Back LCM
—
49.42
49.28
▲ 0.14
100 Back LCM
—
2:04.06
—
50 Breast LCM
—
56.79
55.07
▲ 1.72
100 Breast LCM
—
2:09.43
1:55.00
▲ 14.43
50 Fly LCM
—
1:07.18
51.69
▲ 15.49
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.