Swimmer profile
Grayson Kolson
Male11-12Castle Rock SwimmingCO · WESTERN
SeasonUSA Swimming season runs Sept – Aug
Event
2023–24
2024–25
2025–26
50 Free SCY
39.43
34.24
▲ 5.19
30.87
▲ 3.37
100 Free SCY
1:29.81
1:14.17
▲ 15.64
1:10.03
▲ 4.14
200 Free SCY
—
2:40.23
2:27.69
▲ 12.54
500 Free SCY
—
—
6:25.87
50 Back SCY
43.53
38.62
▲ 4.91
35.04
▲ 3.58
100 Back SCY
1:36.28
1:22.34
▲ 13.94
1:15.54
▲ 6.80
200 Back SCY
3:31.98
—
2:37.64
▲ 54.34
50 Breast SCY
56.95
48.61
▲ 8.34
44.20
▲ 4.41
100 Breast SCY
2:04.45
1:44.90
▲ 19.55
1:35.03
▲ 9.87
200 Breast SCY
—
—
3:22.32
50 Fly SCY
—
42.00
36.06
▲ 5.94
100 Fly SCY
—
—
1:27.24
100 IM SCY
1:44.47
1:24.28
▲ 20.19
1:18.86
▲ 5.42
200 IM SCY
—
—
2:47.91
400 IM SCY
—
—
5:53.11
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.