Swimmer profile
Koen Jolstad
Male15-16Hurricanes Swim TeamMN · CENTRAL
SeasonUSA Swimming season runs Sept – Aug
Event
2021–22
2022–23
2023–24
2024–25
2025–26
50 Free SCY
33.64
30.29
▲ 3.35
26.92
▲ 3.37
25.19
▲ 1.73
24.91
▲ 0.28
100 Free SCY
1:17.91
1:05.91
▲ 12.00
58.42
▲ 7.49
54.65
▲ 3.77
53.18
▲ 1.47
200 Free SCY
—
2:26.44
2:04.05
▲ 22.39
1:58.74
▲ 5.31
1:57.81
▲ 0.93
500 Free SCY
—
—
5:35.51
5:26.90
▲ 8.61
5:37.46
▼ 10.56
1000 Free SCY
—
—
—
11:50.24
—
50 Back SCY
40.38
37.60
▲ 2.78
—
—
—
100 Back SCY
1:29.18
1:23.15
▲ 6.03
1:09.88
▲ 13.27
59.57
▲ 10.31
1:00.51
▼ 0.94
200 Back SCY
—
—
—
2:27.51
—
50 Breast SCY
43.26
37.56
▲ 5.70
—
—
—
100 Breast SCY
1:36.02
1:21.62
▲ 14.40
1:15.60
▲ 6.02
1:08.72
▲ 6.88
1:04.79
▲ 3.93
200 Breast SCY
—
2:55.08
2:42.40
▲ 12.68
2:31.91
▲ 10.49
2:31.83
▲ 0.08
50 Fly SCY
42.08
40.30
▲ 1.78
—
—
—
100 IM SCY
1:32.84
1:15.55
▲ 17.29
1:09.46
▲ 6.09
1:00.76
▲ 8.70
1:00.31
▲ 0.45
200 IM SCY
—
2:51.52
2:34.15
▲ 17.37
2:14.51
▲ 19.64
2:19.71
▼ 5.20
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.