Swimmer profile

Katharine Costello

Female15-16Empire KC Swim ClubMV · CENTRAL

SeasonUSA Swimming season runs Sept – Aug
Event
2020–21
2021–22
2022–23
2025–26
50 Free LCM
37.65
31.67
▲ 5.98
30.51
▲ 1.16
100 Free LCM
1:23.57
1:11.53
▲ 12.04
1:06.97
▲ 4.56
200 Free LCM
3:02.88
2:34.52
▲ 28.36
2:34.05
▲ 0.47
400 Free LCM
5:38.87
5:24.47
▲ 14.40
5:06.19
▲ 18.28
50 Back LCM
51.03
41.13
▲ 9.90
100 Back LCM
1:38.73
1:19.69
▲ 19.04
50 Breast LCM
51.45
41.75
▲ 9.70
34.49
▲ 7.26
100 Breast LCM
1:45.73
1:31.66
▲ 14.07
1:26.60
▲ 5.06
1:16.53
▲ 10.07
200 Breast LCM
3:10.70
3:00.46
▲ 10.24
50 Fly LCM
48.53
37.58
▲ 10.95
100 Fly LCM
1:27.87
1:21.33
▲ 6.54
200 IM LCM
3:26.80
3:00.21
▲ 26.59
2:51.89
▲ 8.32
2:35.85
▲ 16.04
400 IM LCM
5:50.34
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.

50 Free LCM30.51PB
100 Free LCM1:06.97PB
200 Free LCM2:34.05PB
400 Free LCM5:06.19PB
50 Back LCM41.13PB
100 Back LCM1:19.69PB
50 Breast LCM36.77PB
100 Breast LCM1:20.40PB
200 Breast LCM3:00.46PB
50 Fly LCM37.58PB
100 Fly LCM1:21.33PB
200 IM LCM2:44.95PB
400 IM LCM5:50.34PB