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 LCM
39.48
33.12
▲ 6.36
29.71
▲ 3.41
29.86
▼ 0.15
29.00
▲ 0.86
100 Free LCM
1:31.49
1:13.21
▲ 18.28
1:04.82
▲ 8.39
1:03.97
▲ 0.85
1:01.92
▲ 2.05
200 Free LCM
—
2:45.71
2:19.16
▲ 26.55
2:23.40
▼ 4.24
—
400 Free LCM
—
5:43.62
4:58.06
▲ 45.56
5:12.68
▼ 14.62
—
50 Back LCM
48.83
42.63
▲ 6.20
—
—
32.24
▲ 10.39
100 Back LCM
1:52.06
1:35.33
▲ 16.73
1:18.61
▲ 16.72
1:13.77
▲ 4.84
1:11.56
▲ 2.21
200 Back LCM
—
—
—
2:50.19
—
50 Breast LCM
46.44
43.40
▲ 3.04
40.99
▲ 2.41
36.38
▲ 4.61
34.03
▲ 2.35
100 Breast LCM
1:41.40
1:30.20
▲ 11.20
1:30.99
▼ 0.79
1:19.15
▲ 11.84
1:16.55
▲ 2.60
200 Breast LCM
—
3:16.88
3:08.02
▲ 8.86
3:00.00
▲ 8.02
2:59.80
▲ 0.20
50 Fly LCM
50.35
46.48
▲ 3.87
38.07
▲ 8.41
—
—
100 Fly LCM
—
—
—
—
1:23.90
200 IM LCM
—
3:08.43
2:49.01
▲ 19.42
2:44.73
▲ 4.28
2:40.15
▲ 4.58
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.