Swimmer profile
Chenglin Song
Male13-14Rockville Montgomery Swim ClubPV · EASTERN
SeasonUSA Swimming season runs Sept – Aug
Event
2022–23
2023–24
2024–25
2025–26
50 Free SCY
36.70
33.14
▲ 3.56
28.35
▲ 4.79
25.45
▲ 2.90
100 Free SCY
1:23.60
1:15.55
▲ 8.05
1:01.67
▲ 13.88
53.51
▲ 8.16
200 Free SCY
—
—
2:16.55
1:54.41
▲ 22.14
500 Free SCY
—
—
6:04.37
5:06.61
▲ 57.76
1000 Free SCY
—
—
—
10:33.71
1650 Free SCY
—
—
—
17:36.51
50 Back SCY
41.30
38.27
▲ 3.03
33.89
▲ 4.38
30.00
▲ 3.89
100 Back SCY
1:31.17
1:21.44
▲ 9.73
1:14.57
▲ 6.87
1:00.98
▲ 13.59
200 Back SCY
—
—
—
2:13.99
50 Breast SCY
51.46
—
38.86
▲ 12.60
—
100 Breast SCY
—
—
1:25.34
1:17.97
▲ 7.37
200 Breast SCY
—
—
—
2:45.60
50 Fly SCY
44.01
35.68
▲ 8.33
34.12
▲ 1.56
29.04
▲ 5.08
100 Fly SCY
—
—
1:17.02
1:06.56
▲ 10.46
200 Fly SCY
—
—
—
2:20.06
100 IM SCY
1:35.73
1:25.33
▲ 10.40
1:11.20
▲ 14.13
1:04.58
▲ 6.62
200 IM SCY
—
—
2:33.13
2:14.81
▲ 18.32
400 IM SCY
—
—
—
4:43.97
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.