Swimmer profile
Mason Umemoto
Male11-12Hilo Aquatic ClubHI · WESTERN
SeasonUSA Swimming season runs Sept – Aug
Event
2023–24
2025–26
50 Free LCM
42.47
33.54
▲ 8.93
100 Free LCM
—
1:13.66
200 Free LCM
—
2:39.71
400 Free LCM
—
5:40.96
50 Breast LCM
55.22
50.20
▲ 5.02
100 Breast LCM
1:58.26
—
50 Fly LCM
51.16
39.00
▲ 12.16
100 Fly LCM
—
1:33.93
200 IM LCM
—
3:09.30
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.