Session Details

Pieter Hamstra
FlagPieter Hamstra

Wednesday 6 May 2026



Max 2 sec
32.08 kts
Rating
Average speed
30.91 kts (31.45 31.21 30.9 30.79 30.17)
100m
31.75 kts
250m
30.7 kts
500m
27.26 kts
½ hour
13.58 kts
Hour
12.68 kts
Duration
01:34:46
Naut. Mile
24.41 kts
Alpha
13.71 kts
Distance
40.96 km
Wind
12 knots
Gust
21 knots
Direction
N ( 0)

Mooie middag samen met Johan bij de weg gevaren, wind was te noord en te weinig voor bij de dammetjes.

Filter Rankings
Day Rank - speed
# Rider Avg
1 Nico Wierstra 32.16
2 Onno de Boer 31.20
3 Pieter Hamstra 30.91
4 Johan Gelling 29.88
5 Anne Osinga 29.73
6 Oane Kingma 29.52
7 Thewes De Boer 28.44
8 Ivo Fellinger 27.99
9 Rolf Smook 27.97
10 Gosse Visser 27.36
Day Rank - speed
Avg
    Rider Avg 2 Sec 500m Mile Hour Distance Alpha
1 Nico Wierstra 32.16 33.36 31.45 26.61 19.88 107.09 19.37
2 Onno de Boer 31.20 32.62 30.50 28.22 13.66 31.77 13.38
3 Pieter Hamstra 30.91 32.08 27.26 24.41 12.68 40.96 13.71
4 Johan Gelling 29.88 30.70 28.39 25.34 17.73 116.69 16.38
5 Anne Osinga 29.73 30.73 28.82 25.30 22.27 69.40 23.12
6 Oane Kingma 29.52 33.25 27.97 23.64 15.05 74.73 18.41
7 Thewes De Boer 28.44 29.49 27.61 24.78 18.65 49.06 19.83
8 Ivo Fellinger 27.99 29.67 27.75 21.34 13.81 64.10 16.38
9 Rolf Smook 27.97 29.24 27.08 21.92 12.52 53.93 0.00
10 Gosse Visser 27.36 28.30 26.87 22.82 11.12 33.47 11.25

Gear size range

Sail (m²)
7.0 avg 7.7 8.5
Board (W)
63 avg 106 128
Fin (cm)
32 avg 38 42
Wind Observation
🕐6h7h8h9h10h11h12h13h14h15h16h17h18h19h20h21h
kts14161515171718181818191818191717
kts*21232222262628282828303030292727
°C10°10°11°11°12°11°11°12°12°12°12°12°11°12°11°
Time6789101112131415161718192021
Direction
Wind14161515171718181818191818191717
Gust21232222262628282828303030292727
Degrees

68°

45°

45°

45°

45°

45°

45°

45°

45°

45°

45°

45°

45°

23°

23°

23°

Session Achievements
Category Speed Type Speed
BestYear
alpha racing 13.71knots