Swimmer profile
Mayumi So
Female10 & UnderRockford Marlins Swim ClubIL · CENTRAL
SeasonUSA Swimming season runs Sept – Aug
Event
2023–24
2024–25
2025–26
50 Free SCY
43.48
39.35
▲ 4.13
34.29
▲ 5.06
100 Free SCY
1:41.65
1:24.98
▲ 16.67
1:16.28
▲ 8.70
200 Free SCY
—
—
2:46.97
500 Free SCY
—
8:00.46
7:15.31
▲ 45.15
50 Back SCY
51.97
44.94
▲ 7.03
39.28
▲ 5.66
100 Back SCY
—
1:36.36
1:20.12
▲ 16.24
50 Breast SCY
59.03
46.49
▲ 12.54
39.92
▲ 6.57
100 Breast SCY
—
1:40.92
1:28.60
▲ 12.32
50 Fly SCY
52.53
40.20
▲ 12.33
34.58
▲ 5.62
100 Fly SCY
—
1:44.08
1:17.82
▲ 26.26
100 IM SCY
1:54.49
1:36.34
▲ 18.15
1:27.54
▲ 8.80
200 IM SCY
—
3:18.91
2:54.55
▲ 24.36
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.