Swimmer profile
Katharine Costello
Female15-16Empire KC Swim ClubMV · CENTRAL
SeasonUSA Swimming season runs Sept – Aug
Event
2020–21
2021–22
2022–23
2023–24
2024–25
2025–26
50 Free SCY
—
30.08
27.61
▲ 2.47
27.71
▼ 0.10
26.93
▲ 0.78
26.18
▲ 0.75
100 Free SCY
1:21.01
1:04.91
▲ 16.10
1:00.11
▲ 4.80
1:00.11
± 0.00
58.90
▲ 1.21
58.69
▲ 0.21
200 Free SCY
—
2:34.04
2:11.90
▲ 22.14
2:13.28
▼ 1.38
2:03.13
▲ 10.15
2:00.29
▲ 2.84
500 Free SCY
—
—
6:13.14
6:20.66
▼ 7.52
—
5:22.71
▲ 57.95
1000 Free SCY
—
—
—
—
12:19.96
11:59.81
▲ 20.15
1650 Free SCY
—
—
—
—
20:37.01
19:50.42
▲ 46.59
50 Back SCY
46.71
—
34.92
▲ 11.79
—
—
33.51
▲ 1.41
100 Back SCY
—
1:19.44
—
1:20.88
▼ 1.44
1:12.83
▲ 8.05
—
200 Back SCY
—
—
—
—
2:37.58
2:30.38
▲ 7.20
50 Breast SCY
48.02
36.67
▲ 11.35
34.71
▲ 1.96
—
—
30.28
▲ 4.43
100 Breast SCY
—
1:21.55
1:18.11
▲ 3.44
1:14.78
▲ 3.33
1:06.14
▲ 8.64
1:04.61
▲ 1.53
200 Breast SCY
—
—
—
2:43.98
2:35.95
▲ 8.03
2:24.62
▲ 11.33
50 Fly SCY
52.45
39.83
▲ 12.62
32.20
▲ 7.63
—
—
30.43
▲ 1.77
100 Fly SCY
—
—
1:13.61
1:11.59
▲ 2.02
1:07.46
▲ 4.13
1:05.20
▲ 2.26
200 Fly SCY
—
—
—
—
—
2:27.71
100 IM SCY
—
1:15.28
1:08.86
▲ 6.42
—
—
1:09.28
▼ 0.42
200 IM SCY
—
—
2:32.94
2:32.09
▲ 0.85
2:24.26
▲ 7.83
2:11.67
▲ 12.59
400 IM SCY
—
—
—
5:27.39
5:17.41
▲ 9.98
5:04.91
▲ 12.50
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.