Swimmer profile
Olivia Costello
Female11-12West Essex YMCANJ · EASTERN
SeasonUSA Swimming season runs Sept – Aug
Event
2023–24
2024–25
2025–26
50 Free LCM
—
42.25
37.36
▲ 4.89
100 Free LCM
1:38.68
1:35.34
▲ 3.34
1:24.09
▲ 11.25
50 Back LCM
—
44.69
43.54
▲ 1.15
100 Back LCM
1:51.79
1:39.32
▲ 12.47
1:35.10
▲ 4.22
200 Back LCM
—
—
3:24.67
50 Breast LCM
—
52.65
46.39
▲ 6.26
100 Breast LCM
2:09.23
1:53.99
▲ 15.24
1:47.05
▲ 6.94
200 Breast LCM
—
4:01.55
—
50 Fly LCM
—
50.53
—
200 IM LCM
—
3:38.64
3:25.47
▲ 13.17
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.