Swimmer profile
Kate Jefferies
Female15-16Saline Swim TeamMI · CENTRAL
SeasonUSA Swimming season runs Sept – Aug
Event
2019–20
2020–21
2021–22
2022–23
2023–24
2024–25
2025–26
50 Free SCY
42.59
41.06
▲ 1.53
35.95
▲ 5.11
31.55
▲ 4.40
29.09
▲ 2.46
27.71
▲ 1.38
27.14
▲ 0.57
100 Free SCY
1:41.79
1:34.48
▲ 7.31
1:21.42
▲ 13.06
1:11.84
▲ 9.58
1:03.43
▲ 8.41
59.75
▲ 3.68
58.48
▲ 1.27
200 Free SCY
3:39.81
—
3:17.02
▲ 22.79
2:37.08
▲ 39.94
2:23.22
▲ 13.86
2:06.81
▲ 16.41
—
500 Free SCY
—
—
—
7:00.02
6:21.28
▲ 38.74
5:41.52
▲ 39.76
5:38.74
▲ 2.78
1000 Free SCY
—
—
—
—
—
12:03.16
—
1650 Free SCY
—
—
—
—
—
—
20:21.41
50 Back SCY
46.41
44.54
▲ 1.87
41.24
▲ 3.30
37.12
▲ 4.12
33.28
▲ 3.84
31.20
▲ 2.08
29.79
▲ 1.41
100 Back SCY
1:40.64
1:35.90
▲ 4.74
1:29.26
▲ 6.64
1:21.41
▲ 7.85
1:12.03
▲ 9.38
1:06.55
▲ 5.48
1:03.09
▲ 3.46
200 Back SCY
—
—
—
2:54.38
2:33.25
▲ 21.13
2:21.86
▲ 11.39
2:19.74
▲ 2.12
50 Breast SCY
1:02.88
58.30
▲ 4.58
52.05
▲ 6.25
46.89
▲ 5.16
42.42
▲ 4.47
40.89
▲ 1.53
—
100 Breast SCY
2:22.79
—
1:55.42
▲ 27.37
1:41.01
▲ 14.41
1:32.42
▲ 8.59
1:28.55
▲ 3.87
1:25.18
▲ 3.37
200 Breast SCY
—
—
—
—
—
3:11.40
3:03.30
▲ 8.10
50 Fly SCY
54.44
—
45.38
▲ 9.06
37.04
▲ 8.34
36.64
▲ 0.40
32.34
▲ 4.30
28.63
▲ 3.71
100 Fly SCY
—
—
1:52.55
1:27.57
▲ 24.98
1:22.27
▲ 5.30
1:11.41
▲ 10.86
1:04.07
▲ 7.34
200 Fly SCY
—
—
—
—
—
2:45.56
2:34.35
▲ 11.21
100 IM SCY
1:58.79
1:48.44
▲ 10.35
1:34.19
▲ 14.25
1:22.85
▲ 11.34
1:17.46
▲ 5.39
1:07.82
▲ 9.64
1:07.20
▲ 0.62
200 IM SCY
—
—
3:16.27
2:54.49
▲ 21.78
2:48.78
▲ 5.71
2:30.69
▲ 18.09
2:23.79
▲ 6.90
400 IM SCY
—
—
—
—
—
5:30.99
5:17.12
▲ 13.87
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.