Session Details

Wubbo Roelfsema

Wubbo Roelfsema

Tuesday 21 October 2025

Spot - IJsselmeer - Medemblik Netherlands

Board - Gong Cruzader Point FSP pro 6.0XL, 2024

Sail - Duotone Unit 6.5, 2024

Fin - not defined - 0

GPS - Suunto Race S

Max 2 sec

26.14 knots

Rating

Average speed

24.95 knots (25.44 25.12 24.8 24.79 24.61)

100m

25.65 knots

250m

25.32 knots

500m

24.56 knots

500m

24.56 knots

1/2 hour

16.02 knots

1/2 hour

16.02 knots

Hour

13.45 knots

Duration

01:51:52

Hour

13.45 knots

Duration

01:51:52

Nautical Mile

18.42 knots

Alpha racing

17.33 knots

Distance

58.56 km

Distance

58.56 km

Wind Speed

15 knots

Wind direction

WSW ( 248)

Filter Rankings

Day Rank - speed

Avg

Nr		Rider	Avg
1		Michiel Steur	27.91
2		Wubbo Roelfsema	24.95

Day Rank - speed

Avg

		Rider	Avg	2 Sec	500m	Mile	Hour	Distance	Alpha
1		Michiel Steur	27.91	29.35	28.26	23.24	12.90	59.96	18.47
2		Wubbo Roelfsema	24.95	26.14	24.56	18.42	13.45	58.56	17.33

Wind Observation

9

28 Gust

17 Wind

225°

10

25 Gust

15 Wind

248°

11

25 Gust

13 Wind

248°

12

25 Gust

15 Wind

248°

13

26 Gust

16 Wind

248°

14

26 Gust

16 Wind

248°

15

29 Gust

18 Wind

248°

16

26 Gust

16 Wind

248°

17

27 Gust

16 Wind

225°

18

26 Gust

14 Wind

225°

Time	9	10	11	12	13	14	15	16	17	18
Direction
Wind	17	15	13	15	16	16	18	16	16	14
Gust	28	25	25	25	26	26	29	26	27	26
Degrees	225°	248°	248°	248°	248°	248°	248°	248°	225°	225°

Session Achievements

Achievement	Category	Speed Type	Speed	Rank
	BestAllTime	100	25.65knots	#1
	BestspotAllTime	100	25.65knots	#2
	BestAllTime	10sec	25.44knots	#3
	BestspotAllTime	10sec	25.44knots	#4
	BestspotAllTime	24hour	31.62knots	#5