Swimmer profile
Jason Feng
Male10 & UnderBoys & Girls Clubs of San Francisco Aquatic ClubPC · WESTERN
SeasonUSA Swimming season runs Sept – Aug
Event
2022–23
2023–24
2024–25
2025–26
50 Free LCM
50.87
—
37.12
▲ 13.75
34.60
▲ 2.52
100 Free LCM
1:58.72
1:44.74
▲ 13.98
1:27.68
▲ 17.06
1:17.37
▲ 10.31
50 Back LCM
56.68
51.06
▲ 5.62
44.39
▲ 6.67
39.21
▲ 5.18
100 Back LCM
—
—
1:32.07
1:23.11
▲ 8.96
50 Breast LCM
1:04.62
—
—
—
100 Breast LCM
—
—
1:50.09
—
50 Fly LCM
—
53.27
40.42
▲ 12.85
36.14
▲ 4.28
100 Fly LCM
2:31.35
—
1:34.76
▲ 56.59
1:27.38
▲ 7.38
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.