Session Details
Ton van der Werf
Saturday 28 March 2026
Board -
Tabou Speedster 69 Ltd, 2015 
Sail -
Gaastra Phantom 7.8, 2020
Fin -
Select SL7 37
GPS -
COROS APEX 2 Pro
Max 2 sec
27.78 knots
Rating
Average speed
26.59 knots (27.09 26.66 26.44 26.39 26.39)
100m
27.31 knots
250m
26.52 knots
500m
25.75 knots
500m
25.75 knots
1/2 hour
13 knots
1/2 hour
13 knots
Hour
11.63 knots
Duration
01:23:38
Hour
11.63 knots
Duration
01:23:38
Nautical Mile
24.4 knots
Alpha racing
18.67 knots
Distance
31.52 km
31.52 km
Wind Speed
15 knots
Wind direction
NW ( 270)
Pittige sessie. NW is de beste richting op Horst maar was vandaag wel heel erg aan uit en ik had moeite met de eerste keer groot zeil. Na wat afstellen ging het een stuk beter en was het scheuren naar Harderwijk. Het was koud op het water, inclusief hagel... Soms kon ik nog net de giek vasthouden en na 2 uurtjes was ik wel klaar. En bij de auto stond je in een relatief warme zon en was de kou helemaal verdwenen.
Filter Rankings
Day Rank - speed
| # | Rider | Avg | |
|---|---|---|---|
| 1 | Rob Allersma | 31.20 | |
| 2 | Pieter Rietveld | 31.11 |  |
| 3 | Marco Lambers | 29.51 | |
| 4 | Harm Jaap de Witt | 28.82 | |
| 5 | Mark Spierings | 28.38 | |
| 6 | Marcel Mulder | 28.01 | |
| 7 | Armand van Renssen | 27.07 | |
| 8 | Mark Oosterhuis | 26.98 | |
| 9 | Ton van der Werf | 26.59 | |
| 10 | Marijn Rijswijk | 26.14 | |
Day Rank - speed
| Rider | Avg | 2 Sec | 500m | Mile | Hour | Distance | Alpha | |||
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | |
Rob Allersma | 31.20 | 33.31 | 30.28 | 27.50 | 11.44 | 67.26 | 0.00 | |
| 2 | |
Pieter Rietveld | 31.11 | 32.06 | 30.85 | 25.47 | 13.64 | 46.39 | 10.99 | |
| 3 | |
Marco Lambers | 29.51 | 30.66 | 29.47 | 26.45 | 14.35 | 59.29 | 0.00 | |
| 4 | |
Harm Jaap de Witt | 28.82 | 30.12 | 28.14 | 26.06 | 10.82 | 20.12 | 14.47 | |
| 5 | |
Mark Spierings | 28.38 | 30.18 | 28.20 | 25.41 | 11.00 | 52.47 | 10.70 | |
| 6 | |
Marcel Mulder | 28.01 | 29.00 | 28.02 | 23.34 | 6.06 | 25.60 | 0.00 | |
| 7 | |
Armand van Renssen | 27.07 | 28.57 | 27.34 | 23.45 | 16.85 | 73.88 | 17.24 | |
| 8 | |
Mark Oosterhuis | 26.98 | 28.59 | 26.87 | 23.59 | 9.76 | 30.45 | 8.61 | |
| 9 | |
Ton van der Werf | 26.59 | 27.78 | 25.75 | 24.40 | 11.63 | 31.52 | 18.67 | |
| 10 | |
Marijn Rijswijk | 26.14 | 29.65 | 27.31 | 25.96 | 9.11 | 30.26 | 15.71 | |
Wind Observation
| 🕐 | 8h | 9h | 10h | 11h | 12h | 13h | 14h | 15h | 16h | 17h | 18h | 19h | 20h |
| ↗ | |||||||||||||
| kts | 12 | 8 | 11 | 15 | 12 | 15 | 16 | 16 | 18 | 16 | 14 | 15 | 13 |
| kts* | 25 | 11 | 19 | 29 | 17 | 23 | 31 | 22 | 30 | 29 | 19 | 23 | 28 |
| °C | 8° | 7° | 7° | 8° | 8° | 9° | 9° | 9° | 9° | 8° | 8° | 8° | 6° |
| Time | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Direction | |||||||||||||
| Wind | 12 | 8 | 11 | 15 | 12 | 15 | 16 | 16 | 18 | 16 | 14 | 15 | 13 |
| Gust | 25 | 11 | 19 | 29 | 17 | 23 | 31 | 22 | 30 | 29 | 19 | 23 | 28 |
| Degrees | 315° | 293° | 293° | 315° | 315° | 315° | 293° | 293° | 293° | 293° | 293° | 293° | 293° |
Session Achievements
Achievement |
Category |
Speed Type |
Speed |
Rank |
|---|---|---|---|---|
BestYear |
500 |
25.75knots |
#1 | |
BestYear |
avg |
26.59knots |
#2 | |
BestYear |
hour |
11.63knots |
#3 | |
BestYear |
mile |
24.40knots |
#4 |