Swimmer profile
Janette Kostamo-Peistrup
Female15-16New Trier AquaticsIL · CENTRAL
SeasonUSA Swimming season runs Sept – Aug
Event
2018–19
2022–23
2025–26
50 Free LCM
41.40
31.02
▲ 10.38
30.24
▲ 0.78
100 Free LCM
—
1:09.94
1:08.40
▲ 1.54
200 Free LCM
3:41.66
2:34.26
▲ 67.40
2:37.35
▼ 3.09
400 Free LCM
—
—
5:45.38
800 Free LCM
—
12:14.16
—
50 Back LCM
—
—
37.33
100 Back LCM
1:49.27
1:18.83
▲ 30.44
1:15.00
▲ 3.83
200 Back LCM
—
2:52.33
2:46.51
▲ 5.82
50 Breast LCM
1:00.78
—
—
100 Breast LCM
—
—
1:32.00
200 Breast LCM
—
—
3:17.56
100 Fly LCM
—
1:21.91
1:19.40
▲ 2.51
200 Fly LCM
—
—
2:59.51
200 IM LCM
—
2:58.50
2:50.02
▲ 8.48
400 IM LCM
—
6:47.17
—
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.