Session Details

Martin Koolma
FlagMartin Koolma

Tuesday 9 June 2026

Spot Lauwersmeer Netherlands
Board Future Fly Dark Horse 117, 2024
Sail Severne Mach 8 7.5, 2025
Fin Sonntag Fins SL-pro 2 37
GPS COROS VERTIX 2S
Max 2 sec
33.69 kts
Rating
Average speed
31.81 kts (32.32 31.94 31.92 31.68 31.22)
100m
32.87 kts
250m
31.68 kts
500m
30.16 kts
½ hour
19.73 kts
Hour
16.8 kts
Duration
02:30:26
Naut. Mile
25.27 kts
Alpha
19.94 kts
Distance
75.47 km
Wind
14 knots
Gust
20 knots
Direction
SW ( 270)

Filter Rankings
Day Rank - speed
# Rider Avg
1 Bram Kloosterman 33.29
2 Johan Bulthuis 32.04
3 Pieter Hamstra 31.91
4 Martin Koolma 31.81
5 Marcus Stevens 30.96
6 Ivo Fellinger 30.80
7 Benjamin de Bie 30.30
8 Gosse Visser 28.68
Day Rank - speed
Avg
    Rider Avg 2 Sec 500m Mile Hour Distance Alpha
1 Bram Kloosterman 33.29 35.63 31.68 25.18 14.34 59.48 17.74
2 Johan Bulthuis 32.04 34.57 31.05 26.90 14.15 56.79 18.64
3 Pieter Hamstra 31.91 34.52 30.21 20.78 12.33 47.50 16.17
4 Martin Koolma 31.81 33.69 30.16 25.27 16.80 75.47 19.94
5 Marcus Stevens 30.96 33.22 29.49 26.49 16.71 69.02 21.68
6 Ivo Fellinger 30.80 32.17 29.65 23.12 13.47 57.12 13.45
7 Benjamin de Bie 30.30 31.93 27.82 23.74 15.96 51.48 18.29
8 Gosse Visser 28.68 29.60 27.67 22.93 10.23 46.32 14.36

Gear size range

Sail (m²)
6.5 avg 7.6 8.5
Board (W)
72 avg 112 128
Fin (cm)
37 avg 39 42
Wind Observation
🕐6h7h8h9h10h11h12h13h14h15h16h17h18h19h20h21h
↗
kts11111012121617181819191818171513
kts*18201821212527292932313131262621
°C15°14°14°14°15°16°16°15°15°16°16°16°14°13°15°13°
Time6789101112131415161718192021
Direction
Wind11111012121617181819191818171513
Gust18201821212527292932313131262621
Degrees

270°

293°

270°

270°

270°

248°

248°

270°

270°

248°

248°

248°

248°

248°

248°

225°