Swimmer profile
Robert Jefferson
Male11-12Mission Aurora Colorado SwimmingCO · WESTERN
SeasonUSA Swimming season runs Sept – Aug
Event
2023–24
2024–25
2025–26
50 Free SCY
43.82
33.78
▲ 10.04
28.90
▲ 4.88
100 Free SCY
—
1:16.82
1:07.31
▲ 9.51
200 Free SCY
—
2:52.16
2:30.49
▲ 21.67
500 Free SCY
—
—
6:39.91
50 Back SCY
47.90
38.96
▲ 8.94
36.04
▲ 2.92
100 Back SCY
—
1:31.58
1:16.44
▲ 15.14
50 Breast SCY
—
47.08
40.53
▲ 6.55
100 Breast SCY
—
1:43.06
1:27.55
▲ 15.51
200 Breast SCY
—
—
3:00.93
50 Fly SCY
—
43.07
33.60
▲ 9.47
100 Fly SCY
—
—
1:13.38
100 IM SCY
—
1:31.05
1:16.06
▲ 14.99
200 IM SCY
—
3:34.36
2:47.19
▲ 47.17
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.