Swimmer profile
Karson Koscheski
Female13-14Trident Aquatics ClubOK · CENTRAL
SeasonUSA Swimming season runs Sept – Aug
Event
2022–23
2023–24
2024–25
2025–26
50 Free SCY
49.07
38.94
▲ 10.13
33.16
▲ 5.78
29.48
▲ 3.68
100 Free SCY
1:45.19
1:25.26
▲ 19.93
1:13.34
▲ 11.92
1:04.70
▲ 8.64
200 Free SCY
—
3:03.39
2:39.96
▲ 23.43
2:20.29
▲ 19.67
500 Free SCY
—
—
—
6:09.99
50 Back SCY
58.95
49.26
▲ 9.69
42.22
▲ 7.04
—
100 Back SCY
2:07.74
1:42.85
▲ 24.89
1:35.24
▲ 7.61
1:20.91
▲ 14.33
200 Back SCY
—
3:49.17
3:24.79
▲ 24.38
—
50 Breast SCY
1:09.15
—
48.85
▲ 20.30
—
100 Breast SCY
—
2:05.84
1:48.52
▲ 17.32
1:32.32
▲ 16.20
200 Breast SCY
—
—
3:48.82
—
50 Fly SCY
—
51.57
43.94
▲ 7.63
—
100 Fly SCY
—
—
1:37.82
—
100 IM SCY
2:08.56
1:41.92
▲ 26.64
1:28.62
▲ 13.30
—
200 IM SCY
—
—
3:18.67
2:53.53
▲ 25.14
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.