Windsurf
DUNKERBECK SPEED CHALLENGES
Virtual Global Tour
The Third– Final Action just about to start! 01.10. - 30.11.26
SIGN UP & EVENTINFO HERE:
It’s a wrap! What a finish!
The Summer Edition- The Charge brought together speed sailors from around the world, with riders pushing their limits and delivering some seriously fast sessions.
In the 250 m ranking, Vincent Valkenaers takes the win with an impressive 47.91 knots (88.74 km/h), setting the fastest pace in the Open category at La Palme- Plage du Rouet.
From the first upload to the final session, every run counted. Thank you to everyone who joined the challenge, pushed their limits and made this Summer Edition one to remember.
Congratulations to Vincent – and to everyone who was part of The Charge!
Results 2026 1st Edition- Kick Off Dunkerbeck Speed Challenge
CONGRATULATIONS TO ALL WINNERS AND PARTICIPANTS of the FIRST Ed.
The 2026 Dunkerbeck GPS Speed Challenge opened the season with remarkable momentum. More than 900 participants from 34 nations joined the first period of the global tour, making this edition one of the most internationally diverse and energetic starts we have seen.
34 Nations- A Truly Global Community
This year’s Kick Off Edition showcased the full international reach of the speed sailing community. Riders uploaded sessions from Europe, Asia, Oceania, Africa, and the Americas, turning the event into a worldwide celebration of wind and speed.
Highlights of the global spread: Strong participation from France, the Netherlands, Germany, the UK and Spain.
Impressive performances from Japan, Brazil, Australia, New Zealand and South Africa.
Youth and Masters categories represented across multiple continents.
This diversity is one of the core strengths of the Dunkerbeck Speed Challenge and a key reason why the format continues to grow year after year.
Diversity of Conditions
Flat‑water speed strips (La Palme, Tarifa, Haga Park, Den Helder)
Lakes and reservoirs (Grevelingenmeer, Lauwersmeer, Walchensee, Speicher Borna)
Open sea and coastal bays (Gran Canaria, Swan River, Pozzallo, Torbole)
This demonstrates the versatility of the challenge & riders compete under very different conditions.
This Is Just The Beginning
The First Edition lays the foundation for the entire 2026 Dunkerbeck GPS Speed Challenge but two more events are still ahead. Your Kick Off result sets your baseline, while the next stages offer fresh conditions and new chances to climb the ranking.
What’s next in the global tour:
01 July – 31 August 2026 · Summer Edition – The Charge
01 October – 30 November 2026 · The Third – Final Action
A strong start matters but the season is long, and your fastest sessions are still to come.
Sport Hotel- Monte Feliz
YOUR WINDSURF-TRIP TO GRAN CANARIA
Only 11 minutes away from the famous windsurf- spot Pozo Izquierdo and also the geat Speedspot- Arinaga.
Use code WINDSURFBD and save on your booking.
Surfcenter and the DSC have teamed up with one clear goal: getting more people on the water and making it easy to enjoy the sport. Surfcenter will host DSC practice clinics and act as official gear partner.
Your benefits:
Throughout May 2026, all DSC riders receive a 10% discount on gear. Use code DSC10 at checkout on surf-center.com or contact DSC@surf-center.com.
Surfcenter also offers a Gear Swap Service to upgrade your current race board and sails.
Save the Dates 2026
2026 ONE WORLD. ONE RANKING. YOUR FASTEST 250m.
THANKS TO OUR PARTNERS AND SPONSORS:
CONGRATULATIONS TO ALL WINNERS AND PARTICIPANTS!
Overall Champion: Vincent Valkenears (BEL)
All events completed on the podium!
P1: 2nd | 83.07 km/h (44.86 knots) on 250m
P2: 2nd | 88.83 km/h (47.96 knots) on 250m
P3: 1st | 90.48 km/h (48.85 knots) on 250m
A remarkable and steady performance that secured him the overall crown. Congratulations, Vince!
Women’s Champion: HEIDI ULRICH (SUI)
Two wins and one runner-up result = full control of the season.
P1: 1st | 72.19 km/h (38.98 knots) on 250m
P2: 2nd | 77.19 km/h (41.68 knots) on 250m
P3: 1st | 80.60 km/h (43.52 knots) on 250m
Decisive performances throughout the year.
Congratulations, Heidi!
A Message from Björn Dunkerbeck
The final period of the Dunkerbeck GPS Speed Challenge delivered full autumn power in the Northern Hemisphere. European riders fought through raw conditions, squeezing every knot out of short weather windows while days grew shorter and temperatures dropped.
Meanwhile, far to the south, the speed elite gathered at Diaz Point (Namibia), one of the fastest open- water speed spots on the planet. The Atlantic is super flat and the bay produces the kind of 250 m runs that define a season.
MAY WE INTRODUCE YOU TO...
1st in the Open category with 90,53 km/h = 48,88 knots av. on 250m.
Nils Bach- one of the fastest German Speedsailors & Youtuber
1st in the female category with 80,60 km/h = 43,52 knots av. on 250m.
Heidi Ulrich- World record holder on the nautical mile
1st Junior category (11-14)
Daniel Dunkerbeck: 46,87km/h= 25,31kt
1st Grand Master category (51-60)
Jim Crossly: 86,58 km/h = 46,75 kt
1st Foil Open category
Florian Madec: 66,11 km/h= 35,70 kt
1st Super Master category (61-70)
Uwe-Sören Schmidt: 78,58 km/h= 42,43kt
Huge thanks to everyone who uploaded sessions, shared the stoke, and pushed the limits. Whether you smashed records or simply chased your personal best you contributed to making "The Third" a great edition.
Stay tuned for announcements about the general rankings and the 2026 Dunkerbeck Speed Challenge. Keep your gear ready, your GPS charged and may the wind be with you.
See you on the water
Here you can sign up for "The Third" in the three different disciplines:
Congrats to all winner and participants of the ´25 Summer Edition!
Thanks to our sponsors & partners:
First Bullets In The Pockets!
Thanks to our sponsors & partners
Here you can sign up for Period 2 - 2025
10 years of DSC – how time flies!
Over 5.000 riders from all around the world have joined us so far – an incredible number! Speedsurfing is for everyone, no matter if you're young or old. We've proven that over and over again, with our youngest participants under 10 and the oldest over 70 – and still going strong!
As my father always says: "Windsurfing keeps me young!" And I couldn’t agree more. Let’s keep inspiring more windsurfers to join the challenge. Follow us on social media and spread the stoke:
Once a windsurfer, always a windsurfer! 🤙🏼
Dunkerbeck Speed Challenge:
The most sustainable Speedsurfing Event
The Dunkerbeck GPS Speed Challenge is an online event that brings together speed surfers from around the world in one tour. The event is divided into three periods, with each period lasting several weeks.
Bjorn Dunkerbeck, 42 times windsurf worldchampion, created the event-concept to provide a platform for speed surfers to compete against one another regardless of their location and to bring back the as much as posible windsurfer on the water.
Three Periods
The three periods of the Dunkerbeck GPS Speed Challenge will take place in the common time slots as the previous last three years.
01.04.- 31.05.2025: Period 1 Gran Canaria DSC
01.07. - 31.08.2025: Period 2 The Summer Edition
01.10. - 30.11.2025: Period 3 The Third
During each period, competitors upload their sessions on www.gps-speedsurfing.com and will enter in the ranking with their average speed achieved over a distance of 250 meters.
Competitors can participate from anywhere in the world as long as they have an account on www.gps-speedsurfing.com and access to a GPS device including a way to upload their results to the event website following the gp3s rules.
Here you can sign up for Period 1- 2025
Disciplines and Categories
Explore the world of speedsailing with a lot of wind-powered disciplines -the Dunkerbeck Speed Challenge, is featuring three differnt windsufing types: Fin, Foil, and Wing in each event period:
One account is valid for all events types- No entry fee!
Disciplines:
Speedsailing- Fin: www.gps-speedsurfing.com
Speedsailing- Foil: www.gps-foilsurfing.com
Speedsailing Wing: www.gps-wingfoiling.com
The participation in each and all diciplines is free of charge- just bring a friend and have a lot of fun!
Categories:
in the Fin discipline we will award the fleet as followed:
OPEN MALE & FEMALE · Grand Master (51-60) · Super Master (61-70) · Ultimate Master (71-99) · Youth (0-10) · Junior (11-14) · Junior Plus (15-18)
In the other disciplines have to be compleedet the top three. If not so, the riders will be ranked in the open category.
Global Participation
One of the unique aspects of the Dunkerbeck GPS Speed Challenge is that it allows for global participation. Competitors from all over the world can participate and compete against one another without having to travel to a specific location.
This aspect of the event has helped to increase its popularity and attract a diverse range of competitors from different countries and backgrounds.
One of the goals of the Dunkerbeck GPS Speed Challenge is to discover new speed spots around the world. By exploring new locations, participants can experience different conditions and challenges, making the competition even more exciting.
The event also aims to promote tourism in lesser-known areas, bringing attention to beautiful and unique locations that may not be well-known to the general public.
DUNKERBECK SPEED CHALLENGES
Virtual Global Tour 2022
We want to keep up the fun and racing- spirit. Therefore the worldwide-online format is just perfect.
Fin and Foil with the different classes and categories on
www.gps-speedsurfing.com &
www.gps-foilsurfing.com
01.04. - 31.05.22 Period 1: Gran Canaria Dunkerbeck Speed Challenge
26.05. - 29.05.22 Defi Wind- France
30.06. - 04.07.22 ISWC Fuerte Action Windsurfing Speed World Championship
01.07. - 31.08.22 Period 2: Summer Edition
01.10. - 30.11.22 Period 3: The Third
Each period will have their winner and rankings.
The Live-Events will be awarded separately with event trophies
In each Period we will award Top 3 in the following categories:
OPEN Male & Female · Grand Master (51-60) · Super Master (61-70) · Ultimate Master (71-99) · Youth (0-10) · Junior (11-14) · Junior Plus (15-18) · Foil (from www.gps-foilsurfing.com)
2020
This year, in this exceptional situation that the whole world is experiencing with all the limitations that are being imposed on us, we are happy to continue with the competition format that we have been carrying out since 2015 and to make it even more interesting for all windsurfers.
The online gps- based raceing format on www.gps-speedsurfing.com is a perfect way to compete and maintain the social distancing at the same time.
As a tribute to several postponed big Windsurf competitions we organise online events with awesome prices for the fastest and also raffled prices beween all competitors.
Because it’s also our main motivation to mobilize the entire windsurfing community and regain relative normality through our sport as soon as possible using current technology to compete together from any country in the world without traveling, while promoting windsurfing as an ecological sport and healthy lifestyle
SIAM PARK DUNKERBECK CHALLENGE EXTREME JUMP SESSION 2015
The 2015 Tenerife PWA World Cup was signed off in spectacular fashion on the final evening of the event as ten of the best sailors in the world headed to Siam Park for the Dunkerbeck Challenge.
Siam Park boasts the largest artificial wave in the world – reaching almost 10 foot on its maximum setting – which provided the wave sailing elite with the perfect stunt ramp to launch into their most radical stunts right in front of a packed out crowd – bringing windsurfing to a new scene and reaching a new crowd in the process.
DUNKERBECK GPS SPEED CHALLENGE 2015
With over 15 countries and 80 competitors taking part 2015 the competition has gone from strength to strength.
The completion was hard fought in all categories. The winds were not as strong as 2014 but we managed to achieve four quality rounds for each fleet. With a wind average of 25 knots the most chosen board type was a 54 speed board with the sail combination of 6.2 and 7.0.
A record number of entries including the largest number of youth and junior entries were fighting it out for their European speed titles. We were especially proud to have also six couples in the “father & son” fleet this year what reflects the concept of the Dunkerbeck GPS Speed Challenge.
Event organiser Björn Dunkerbeck said “Very pleased with year two of the Dunkerbeck GPS Speed Challenge incorporating the ISWC European championships and the Canarian championships. It is great for me to be able to compete at an international event together with my son Liam and my father Eugen at this event too. Entries are up from year one and I am particularly pleased to have such a very high standard of Kids entered as they are the future of our sport.”
We are looking forward to the Dunkerbeck GPS Speed Challenge 2016 and will publish the new dates as soon as possible.
GRAN CANARIA – LE DEFI – DUNKERBECK GPS SPEED CHALLENGE
A new „windsurf event format“ is born.
The biggest long distance event in the world- „Le Defi 2015“with over 1200 participants hosted the new GPS Event form Björn Dunkerbeck for the first time.
With the help of the main sponsor „Gran Canaria“ the 16th of May ca. 130 „Defi Competitors“ were fighting for the fastest 250m run measured by their GPS device. Under very rough conditions with gusts of 60 knots managed Antoine Albeau (22 times windsurf- world champion) to be the fastest one before Peter Bijll and Björn Dunkerbeck. The female ranking won the Turkish rider Lena Erdil (vice slalom world champion).
The innovation is the virtual GPS Speed challenge at the same time.
All windsurfer around the world could compete against each other and the competitors of the event with their GPS. The number of participants was amazing. More than 300 riders from almost 20 countries uploaded their times on the website www.gps-speedsurfing.com. This new event- format will give more windsurfers the possibility to compete without traveling around the world with huge board bags. You can do it from your home spot where you know the conditions very well.
SIAM PARK DUNKERBECK CHALLENGE EXTREME JUMP SESSION 2014
With the main event of the 2014 Dunkerbeck-Eyewear Siam Park Tenerife PWA World Cup being concluded two days early, yesterday saw a phenomenal conclusion to another brilliant event in Tenerife as the elite of the wave sailing world headed to Siam Park for the Dunkerbeck Eyewear tow-in exhibition.
DUNKERBECK GPS SPEED CHALLENGE 2014
The philosophy of Dunkerbeck GPS Speed Challenge is to inspire again more windsurfers for the speed discipline. With the format “professional / amateur event” – open to all age-classes- we bring together windsurfers who want to set their personal best or would like to defend their times against other riders. The GPS technology gives us the ability to determine the average speed on a 250 meters or 500 meters course of each competitor. The timing, execution and placement is managed by the colleagues of www.gps-speedsurfing.com. The bay of Matas Blancas on Fuerteventura offers the best wind conditions (angle and speed) for our Dunkerbeck GPS Speed Challenge.
With almost 60 participants including three members of the “50 knots club” and women’s record holder Zara Davis, local riders, international competitors and good wind conditions it was a successful and promising first Speed event in the bay of Matas Blancas/ Fuerteventura. We are looking forward to next year’s event and hope to increase especially the number of participants in the “Father & Son”- fleet – the main idea of the Dunkerbeck GPS Speed Challenge concept.
Surf
SIAM PARK RED BULL RIVALS DUNKERBECK CHALLENGE: EVENT PREVIEW
Bjorn brings together the Red Bull Rival and offers the best surfers of Spain the challenge to surf the world’s largest artificial wave.
Once the riders come together in Lanzarote for the big Red Bull Rival Surf contest Bjorn brings them to the island of Tenerife to surf the world’s largest artificial wave in the water kingdom “SIAM PARK”. There a big audience will have the chance to see very high leveled surf action as close as possible.
The event will be a great festival of Surf with hot music and cool drinks at the beach of the wave pool in the Siam Park.
More Infos:
- www.facebook.com/bjorn.dunkerbeck
- www.siampark.net
- http://rivals.redbull.com
Sup
DUNKERBECK PRO/AM INTERNATIONAL SUP COMPETITION
SIAM PARK SUP CHALLENGE
More information coming soon.
World speed sailing challenge
The World Sailing Speed Record has now stood for nearly thirteen years and is all about beating the fastest time ever measured in the history of this sport. The current record took place 13 years ago, when an Australian vessel set the mark at 46.52 knots (86.16km/h) in open water and natural settings. Although many millions of dollars have been spent since and countless new technological developments have been applied, no one has been able to go faster than that.
Under the jurisdiction of the International Sailing Federation and the watchful eye of a Commissioner of the World Sailing Speed Record Council, challengers still try their luck and sail over a 500-meter distance, during which the average speed is determined.Four giants in sailing – Antoine Albeau, Anders Bringdal, Björn Dunkerbeck and Robby Naish – have decided to challenge the fastest speed sail boat to date and meet at different places around the globe to complete their mission.Their first mission will be to shatter the current record of 46.52 knots (86.16km/h or 53.53mph). Their second mission and the perhaps most coveted price of any sailor will be to break the 50-knot barrier. Some consider it impossible – but the challengers see it definitely within their reach!
