Swimmer profile
Katie Koscielecki
Female13-14Diamond State AquaticsMA · EASTERN
SeasonUSA Swimming season runs Sept – Aug
Event
2025–26
50 Free LCM
36.75
100 Free LCM
1:19.78
50 Back LCM
45.46
50 Breast LCM
48.34
100 Breast LCM
1:45.15
50 Fly LCM
44.75
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.