Swimmer profile
Chenglin Song
Male13-14Rockville Montgomery Swim ClubPV · EASTERN
SeasonUSA Swimming season runs Sept – Aug
Event
2021–22
2022–23
2023–24
2024–25
2025–26
50 Free LCM
43.15
39.80
▲ 3.35
36.41
▲ 3.39
30.72
▲ 5.69
28.05
▲ 2.67
100 Free LCM
—
1:31.87
1:20.58
▲ 11.29
1:09.21
▲ 11.37
1:01.08
▲ 8.13
200 Free LCM
—
—
—
2:30.94
2:09.70
▲ 21.24
400 Free LCM
—
—
—
—
4:35.52
800 Free LCM
—
—
—
—
9:37.29
50 Back LCM
52.62
47.05
▲ 5.57
41.32
▲ 5.73
37.30
▲ 4.02
—
100 Back LCM
—
1:41.87
1:30.84
▲ 11.03
1:18.37
▲ 12.47
1:13.37
▲ 5.00
200 Back LCM
—
—
—
—
2:40.75
50 Breast LCM
1:04.25
1:00.80
▲ 3.45
—
—
—
100 Breast LCM
—
—
—
1:44.14
1:30.23
▲ 13.91
50 Fly LCM
58.54
49.64
▲ 8.90
44.60
▲ 5.04
37.59
▲ 7.01
—
100 Fly LCM
—
—
—
—
1:14.08
200 Fly LCM
—
—
—
—
2:54.23
200 IM LCM
—
—
—
2:54.90
2:33.23
▲ 21.67
400 IM LCM
—
—
—
—
5:31.99
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.