Swimmer profile
Robert Jefferson
Male11-12Mission Aurora Colorado SwimmingCO · WESTERN
SeasonUSA Swimming season runs Sept – Aug
Event
2024–25
2025–26
50 Free LCM
38.87
32.72
▲ 6.15
100 Free LCM
1:24.31
1:09.60
▲ 14.71
200 Free LCM
2:55.94
2:32.51
▲ 23.43
400 Free LCM
—
5:17.32
50 Back LCM
40.10
39.19
▲ 0.91
100 Back LCM
1:32.61
1:32.33
▲ 0.28
50 Breast LCM
46.72
44.18
▲ 2.54
100 Breast LCM
—
1:34.28
200 Breast LCM
—
3:36.56
50 Fly LCM
42.22
35.15
▲ 7.07
100 Fly LCM
—
1:25.16
200 IM LCM
3:37.10
3:00.45
▲ 36.65
400 IM LCM
—
6:40.80
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.