Swimmer profile
Yiyi Cheng
Male11-12First Colony Swim Team, Inc.GU · SOUTHERN
SeasonUSA Swimming season runs Sept – Aug
Event
2022–23
2023–24
2024–25
2025–26
50 Free SCY
37.00
32.95
▲ 4.05
31.07
▲ 1.88
29.10
▲ 1.97
100 Free SCY
—
1:15.82
1:09.24
▲ 6.58
1:05.54
▲ 3.70
200 Free SCY
—
2:55.30
2:32.00
▲ 23.30
2:19.53
▲ 12.47
500 Free SCY
—
—
—
6:27.31
50 Back SCY
46.88
42.84
▲ 4.04
38.35
▲ 4.49
35.90
▲ 2.45
100 Back SCY
—
1:31.26
—
1:18.21
▲ 13.05
200 Back SCY
—
—
2:52.28
—
50 Breast SCY
46.28
38.66
▲ 7.62
35.67
▲ 2.99
33.38
▲ 2.29
100 Breast SCY
1:46.61
1:24.97
▲ 21.64
1:19.51
▲ 5.46
1:12.46
▲ 7.05
200 Breast SCY
—
—
2:49.51
2:37.95
▲ 11.56
50 Fly SCY
48.75
38.97
▲ 9.78
36.96
▲ 2.01
34.14
▲ 2.82
100 Fly SCY
—
1:35.38
1:30.12
▲ 5.26
1:18.68
▲ 11.44
100 IM SCY
1:40.59
1:22.67
▲ 17.92
1:14.48
▲ 8.19
1:11.00
▲ 3.48
200 IM SCY
—
3:18.71
—
—
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.