
Over 100km/h on a windsurfer
The 2021 Luderitz Speed Challenge has come to an end. Using the new Mach5 Luderitz Speed Special, Bjorn Dunkerbeck hit a top speed of 103,68km/h (55,98 knots). Many other 51+ knots runs over 500 meters were recorded by the team throughout this years’ event.
Photo/video by Jaco Wolmarans
Bjorn on form
Apart from his impressive top speed of 103,68km/h (55,98 knots) on the canal this year Bjorn, now 52, also came close to hitting 52 knots over 500 meters beating his own personal best multiple times throughout the event. The amount of days with conditions for record-breaking speeds were few this year leaving less time for preparation and tuning, but on the most windy days the team opted for new 5,2 Mach5 Luderitz Speed Special prototypes which also will be available for ordering throughout 2021 and 2022.
The final score; a third place overall on this years’ ranking for Bjorn and a fifth place for Gunnar.
Karo van Tonder injury update
After tearing her Achilles tendon during this years’ event, Karo had to retire for this years’ Luderitz Speed Challenge; undoubtedly a very frustrating experience. After undergoing treatment, Karo has since then released a vlog post reflecting on what happened:
“It has been an intense few weeks! In this video I am taking you guys behind the scenes on my journey, preparing for the greatest speed sailing event in the world, The Luderitz Speed Challenge. I am sharing all the details of what happened on the day of the injury, my emotions, mindset, and outlook.
Will I continue on this journey? Find out in this video…
A big thank you to the Photographers who took these amazing action photos: Victor Couto, Jaco Wolmarans, the RedBull videography team, and also my amazing mom and dad.“
More Severne news
Test the latest Severne boards in Tarifa
SEVERNE has teamed up with Sportlink in Tarifa to offer windsurfers the chance to test our latest boards before making a purchase decision.
Dunkerbeck Speed Challenge hits 10 year milestone – how to join in 2025
Created by 42-time World Champion and long-time SEVERNE team rider Björn Dunkerbeck, the DSC has become the benchmark for accessible, global speed competition. Over 5,000 riders worldwide have joined the challenge since its inception.
Cadiz Crowns Six iQFOiL Champions in High-Octane Medal Showdown
The 2025 iQFOiL International Games #2 delivered dramatic medal races in perfect conditions, with champions crowned across six divisions after four days of intense competition. Opening series leaders faced serious challenges in gusty 17-knot winds as 240 athletes from 32 nations battled for podium positions.
FROM PWA TO OLYMPIC DREAMS AND BEYOND – MATEUS ISAAC’S JOURNEY
When SEVERNE signed Mateus Isaac back in 2021, the Brazilian was already turning heads on the PWA circuit. Fast forward to 2024, and he’s not just competed in his first Olympics – he’s now sending it aboard the Mubadala sailGP boat. Talk about a proper career progression.
The WAVE RALLY Experiment: It Worked
Something different just went down at Coronation Beach. Wave Rally brought together competition, good vibes and a format that had everyone getting maximum water time. Here’s how a fresh take on windsurfing events got even the most hardened competitors smiling in 10-15 knots.
Main Break Mayhem: Köster Conquers Margaret River
The 2025 Margaret River Wave Classic kicked off with mast-high sets and world-class action. Five-time World Champion Philip Köster claimed victory in epic conditions, while local legend Jaeger Stone met his match in a nail-biting semi-final. The four-star event showcased why Margaret River’s Main Break remains one of wave sailing’s most challenging and rewarding venues.
Oceania Youth Titles 2025 – Severne rising stars dominate
Australia’s next generation of wave sailors dominated the 5-star Jaffle Shack Oceania Youth Wave Titles in Geraldton, all riding SEVERNE.
Sol Degrieck graduates to S-1
At just 14, SEVERNE wave sailor Sol Degrieck transitions from the Redback to S-1, marking a significant milestone in her meteoric rise through the ranks of professional wave sailing.
Desert Duellers – Philip Köster and Jaeger Stone go head to head in Western Australia
Two of SEVERNE’s most accomplished wave sailors have just wrapped up what could be one of the most extraordinary strike missions of 2024. When Philip Köster and Jaeger Stone crossed paths in Western Australia’s remote northwest, something special was bound to happen.