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Rules & Regulations (based on requirements/needs of Efoil Racing League-ERL),
for Belgian Grand Prix in Mechelen (Hombeek) 30th of August 2025

Authored and compiled by Julien Cosson for Dubai, simplified and adapted by Rony Meykens & Raf Claes for Belgian Grand Prix

 General Overview
eFoil racing is a thrilling and innovative sport that combines cutting-edge electric propulsion technology with the grace and agility of hydrofoil boards. Riders, equipped with electrically powered boards that haver above the water’s surface, compete head-to-head on challenging courses that test their speed, skill, and precision. Unlike traditional water sports, eFoil racing offers a unique sensation of flying above the water, powered by clean and efficient electric motors, embodying both sustainability and excitement.

The sport attracts a diverse community of riders-from seasoned athletes to newcomers-all drawn by the adrenaline and freedom that eFoil racing provides. Events are designed to promote fair competition, safety, and a sense of camaraderie, with categories for all levels of experience, from stock riders using factory-standard boards to open classes where custom modifications are encouraged.

With eFoil racing, the boundaries of personal watercraft racing are pushed further, offering an exhilarating experience that blends futuristic technology with the natural beauty of open water. At its core, eFoil racing is about innovation, fun, and the pursuit of speed in a way that’s as thrilling for spectators as it is for the riders themselves.

Partners & Support

  • vzw WVD-Mechelen, Watersportvereniging van de Dijlestreek (Hombeek)
  • Efoil Racing League
  • Efoilservices (Antwerp-North)
  • Onfoil Foilingschool (Hombeek)
  • Timesaver (Mechelen)

Type and planning Event :

WVD Belgian Grand Prix 2025 (EfoilFest) – Saturday 30th of August

Trials will be facilitated on Friday 29th ; “force majeur” may cause postponement

A.M. : Straight Lane course with time-keeping to determinate better positions in next round (riders failing to finish this part, will be placed as worst time ended)

P.M. : Slalom course with Knockout Elimination rounds,  maximum of 2 riders on the course at any time during knockout round.

eFoil Racing: Rules & Regulations

1.  Event Staff and Roles *= required function ERL

(excepted unforeseen indisponibility)

GENERAL

* Race Director & PR : Mr Rony Meykens, Vice-President WVD Mechelen vzw,                                
1.1.1  The Race Director is responsible for the overall management and organization of the event, ensuring compliance with the rules and regulations, including Jury-decisions.

1.1.2  The Race Director has the authority to alter the race schedule, suspend or restart the race in case of unsafe conditions, and make other critical decisions during the event.

  • Director Accomodations : Mr Stefan Rycken, President WVD Mechelen vzw
  • Chief Logistics : Mr Paul Gabriels, Boardmember Logistics WVD Mechelen vzw
  • Eventual disputes in legal matters : Mr Stefaan Deleus, Attourney

RACE

*Chief Referee : Mr Julien Cosson, Delegate International Efoil racing league (ERL)
1.1.3  The Chief Referee ensures that the race is conducted according to the rules and monitors for any infractions or issues.

1.1.4  The Chief Referee oversees timekeeping and approves the final race results.

1.1.5  The Chief Referee may have additional members of their team to conduct time keeping, Latest information of racers times, and current score of riders.

*Flag Marshal : Mr Tim Van Dyck, member WVD
1.1.6  The Flag Marshal is responsible for flag signalization on the course, communicating race status to riders during the event.

1.1.7  The Flag Marshal will raise flags as appropriate (e.g., green, yellow, red, checkered) to ensure rider safety and clear communication.

*Technical Commissioner : Mr Raf Claes, member WVD, supported by Mr Julien Cosson
1.1.8  The Technical Commissioner oversees the technica! inspections of boards and safety gear, ensuring all equipment complies with event regulations.

1.1.9  The Technica! Commissioner may conduct random inspections throughout the event to ensure continued compliance.

OTHER MATTERS & SERVICES

Chief Eventhost (incl. Pressliaison) : Ms Jana Meykens, member WVD

*Medical Team Director/Rescue Team : (Medic) Mr Wilfried Ardies, Physiotherapist / (Rescue) Mr Tom Verbeeck, Boardmember WVD Mechelen
1.1.10  The Medical Director is responsible for overseeing the health and safety of participants and staff during the event.

1.1.11 A trained rescue team will be stationed on-site with at least two rescue boats or personal watercraft to respond to accidents or emergencies.

1.1.12 The Medical Director has the authority to deciare a rider unfit to participate if they are deemed at risk of injury

2.  Technical lnspections

2.1  Pre-Race lnspections

2.1.1  Equipment Maintenance and Servicing:

  • All riders must service their eFoils before the event to ensure they meet safety and performance standards.
  • Riders must ensure that their equipment is in proper working order, reducing the need for major servicing during the event. This includes addressing any potential wear and tear, battery health, and overall board integrity.
  • 2.1.2  Self-Governed lnspection and Declaration:
    Riders are responsible for conducting a self-inspection of their eFoil equipment and signing a declaration sheet confirming that their gear is free of significant damage or abnormalities. This declaration must be completed prior to the race, and riders must ensure their equipment is in line with the event’s technica! and safety requirements.
  • The technical inspection should cover the following components:
    • Board and Battery Box: Free of cracks, damage, or abnormal leaks.
    • Battery: Stock, unmodified, and in good condition, with no signs of corrosion, malfunction, or excessive heat
    • Mast: Must not exceed 110 cm in height and should be structurally sound.
    • Wings: No sharp edges or significant damage.
    • Electronic Ports and ESC (Electronic Speed Controller): All connectors should be functional, properly sealed, and free of corrosion.
    • Cables (Battery and ESC): All cables must be in good condition without exposed wires.
    • Hand Controller: Must be fully functional with no issues affecting operation.

2.1.3  Additional Checks by Officials:

  • In certain cases, the Race Referee or Technical Commissioner may conduct random inspections before or after the rider’s declaration to ensure the equipment complies with the event’s standards. Riders should be prepared to allow further inspection of their eFoils at any time during the event.
  • lf any issues are identified during these additional checks, riders will be required to reddress them before continuing in the race.

2.1.4  Failure to Pass lnspection:

  • Riders who fail to demonstrate proper servicing or whose equipment does not meet the technical standards can be disqualified from the event until the necessary adjustments or repairs are made. Failure to comply with the declaration or random inspection process can also result in disqualification.

Safety Gear lnspections

All measures to be advised in case of non-conformity are on sovereign discretion of the Technical Commissioner, approved by Race Director.

2.1.5  Riders must submit their safety gear (helmets, life jackets, etc.) for inspection prior to the race.

2.1.6  Helmets must be CE, FIM, or equivalent certified and must be in good condition without cracks or structural damage.

2.1.7  Life jackets must provide adequate buoyancy and be properly fitted to the rider. The PFD must be over 50 newtons buoyancy.

2.1.8  Failure to pass the safety gear inspection will result in disqualification from the event until compliant gear is provided.

2.2.1.Sponsorship Vinyls and Stickers:

  • Riders must deciare if they plan to apply sponsorship vinyls, logos, or stickers to their boards, eFoils, or any related equipment.
  • Any declared vinyls or stickers must be approved by the Race Director (eventually Media Manager) prior to the event. This ensures decals do not conflict with event sponsors or official branding.
  • The size, placement, and material of the vinyls must be reviewed during the inspection to ensure they:
    • Do not obstruct the rider’s visibility.
    • Do not interfere with safety equipment.
    • Do not cover or influence important technical components (e.g., electronic ports, battery access, or ventilation areas).
  • Unapproved stickers or failure to declare sponsorships can result in penalties, including removal from the equipment or disqualification.

2.2.2.Attire, Flags and Fabric Attachments:

  • Riders must declare if they plan to attach “unusual” flags or any fabric items to themselves, their eFoil, or other equipment.
  • Flags or fabric attachments must be securely fastened to prevent them from falling into the water, which could create an obstruction or hazard for other riders.
  • The placement and fastening of these items will be reviewed during the equipment inspection, and any item deemed insecure or unsafe will need to be removed or properly secured before the rider is allowed to participate.

2.2.3.Other Equipment:

  • Any other non-standard equipment or accessories that riders intend to use must be declared and approved by event officials.
  • This includes but is not limited to wearable tech, custom apparel or mounted gear that could affect safety, visibility, or performance.
  • All declared items will be checked during the pre-race inspection and may be subject to removal if they are deemed unsafe or non-compliant with the event’s rules.

3.  Licensing and Rider Categories

3.1  Licensing Requirements**NOT REQUIRED FOR BELGIAN GRAND PRIX 2025

Rider Categories: The position in the competition groups leading to knock-out system, will be determinated by the time-keeping during the Straight Lane course A.M.  Prizegiving will also contain a unique medal “woman” and native “Belgian”.

  • Men’s Division: Open to riders aged 16 and over.
  • Women’s Division: Open to riders aged 16 and over.
  • Local & rookies Division : Open to riders aged 10 to 16.

3.2  Stock Only Category

3.2.1  Riders in the Stock Category must use eFoils that are factory-standard and unmodified, ensuring a level playing field.

  • Stock products must be purchasable and deliverable within 60 days before the event, and still purchasable within the event dates.
  • The allowed to complete commercial makes and models of stock efoils will be specified by the local efoil host event organizer.

3.2.2  No modifications to the mast, wings, battery, shims, propeller, motor, ESC, controller, or propulsion systems are permitted.

3.2.3  Any modifications discovered during pre-race inspections will result in the rider being moved to the Semi-Open or Open Category or disqualified from the event.

3.3  Semi-Open Category

3.3.1  Permissible Modifications

Riders in the Semi-Open Category may use modified equipment, provided the modifications comply with the technical and safety specifications. This category’s details are determined by the host race organization in an Appendix 1.

Rules of Navigation

3.4  General Navigation Rules

3.4.1  Riders must follow the designated racecourse as marked by buoys and other course markers. Riders are responsible for understanding the layout and navigation points as presented during the rider briefing, so don’t hesitate to ask the race officials for further explanation.

3.4.2  All riders must maintain a safe distance from other competitors at all times, avoiding reckless or dangerous manoeuvers that could result in collisions.

3.4.3  Overtaking another rider must be done with caution. Riders attempting to overtake must do so from the outside or in a safe manner that does not cut off the overtaken rider’s path.

3.4.4  No cutting corners: Riders must follow the track as defined, and any attempt to take a shortcut or deviate from the set course will result in penalties.

3.4.5  When entering tight turns, riders should position themselves in a way that minimizes potential collisions. Yielding to faster riders on a turn may be required for safety.

3.5  Buoy Navigation

3.5.1  Correct Passing: All buoys on the Slalom racecourse must be passed on the designated side as defined in the race map. Typically:

  • Beige Buoys: Must be passed on the rider’s left (port).
  • Orange Buoys : Must be passed on the rider’s right (starboard).
  • lf other marks are used, their designated side will be communicated during the rider briefing.

3.5.2  Missed Buoys: lf a rider misses a buoy, he/she must either:

  • Return to the buoy and pass it correctly, or
  • Proceed to a penalty buoy, if available, to correct the error. Failure to do so will result in a penalty of up to a maximum of 30-seconds for each missed buoy.
  • lf a buoy is missed, and noticed by the officials, they will make an effort to communicate this to the rider in question. Either by Flag, or hand signal.

3.5.3  Colliding with a buoy:

  • lntentionally cutting inside (i.e., not passing it on the correct side) or on top of a buoy (Direct impact to a buoy over its placement ) without returning to correct the error will result in immediate penalties, including possible disqualification for repeated offenses.

3.5.4  Penalty Buoy:

  • lf a rider misses a buoy and the course allows for a penalty buoy system, the rider must pass the penalty buoy as an alternative. Penalty buoys will be marked clearly and their position disclosed during the briefing. The penalty buoy adds extra distance to the rider’s lap as a corrective measure.

3.5.5  Blocking at Buoys:

  • During a multi riders style race riders must avoid blocking others when approaching or navigating a buoy. Deliberate blocking, cutting off, or aggressive behavior around buoys is considered unsportsmanlike conduct and can result in penalties, including time penalties or disqualification.

3.6  Course Layout and Safety

3.6.1  Following the Course: Riders must adhere to the course as laid out by the organizers. lf a rider goes off course, they must re-enter at the point they left or take a corrective action as defined by the Race Director.

3.6.2  Avoiding Hazards: Riders must always be aware of the surrounding conditions, including potential hazards like shallow areas, eventual corridor for other vessels (at the edge/border of the race area) or other obstructions. The course will be marked to guide riders safely, but it is the rider’s responsibility to stay within the safe zones marked on the course.

3.6.3  Exiting the Racecourse: lf a rider needs to exit the racecourse (e.g., for mechanical issues), they must signal and exit the course in a safe manner, away from active competitors, to avoid creating hazards for others.

3.7  Flag System for Navigation and Safety 

3.7.1  Green Flag: Signifies the start of the race or that the course is clear and the race is in progress.

3.7.2  Yellow Flag: Warns of hazards on the course. Riders must slow down and continue with caution but can maintain their positions.

3.7.3  Red Flag: Signals the race is stopped. All riders must stop immediately and return to the start area using caution.

3.7.4  Checkered Flag: Signifies the end of the race.  Riders must slow down after passing the finish line and proceed to keep clear of the race area.

3.8  Rider Falls and Resuming Navigation 

3.8.1  Falling Protocol:

  • lf riders fall off their eFoil during the race, they must immediately signal they are safe by placing one hand on top of their head. This is a standard safety signal that informs race officials and other competitors that the rider is not injured.
  • Failing to signal after falling will prompt a safety response, and race officials may stop the race to assess the situation.

3.8.2  Swimming to the Board:

  • After falling, riders must safely swim back to their eFoil, while avoiding any risk of collision with other competitors.
  • Riders must be aware of their surroundings and avoid obstructing the path of other racers while swimming to their board.
  • lf another rider is approaching, the fallen rider should wait until the path is clear before reaching his/her board to avoid potential accidents.

3.8.3  Resuming the Race:

  • Once riders have safely reached their eFoil, they must remount the board and resume navigation from the point where they re-enter the course, ensuring they do not gain an unfair advantage by cutting the course.
  • Riders must be cautious when re-entering the racecourse and yield to faster riders or these in close proximity to avoid disrupting the flow of the race.

3.8.4  Safety Assistance:

  • lf  riders are unable to safely swim to their eFoil (e.g., due to injury or equipment malfunction), they must remain in place and signal for help by waving both arms above their head. Race officials or safety teams will approach to provide assistance.
  • In such cases, a Yellow Flag will be raised asap to warn other riders of a hazard on the course, and a Red Flag may be raised if necessary to stop the race until the situation is resolved.

3.8.5  Rider Recovery Time:

  • No penalties are issued for falls unless they result in unsportsmanlike behavior (e.g., blocking the course). However, the time lost while recovering from a fall will naturally affect the rider’s position in the race.
  • lf  riders fall near a buoy and miss the buoy, they must return to the buoy or pass a penalty buoy to correct the missed turn, even if they have already remounted their board.

3.8.6  Multiple Falls:

  • lf a rider falls multiple times, the same recovery procedures apply. However, race officials reserve the right to assess the rider’s condition after several falls to ensure they are fit to continue safely.
  • Excessive falls causing repeated interruptions may lead to a decision by the Cheef Referee, approved by the Race Director to remove the rider from the event for safety reasons.

3.9  Multiple Riders, Right of way, & Safe Passing Practices 

In some racing events and courses it’s possible to have multiple riders on the same course. Below are details outlined to explain how racing is to be conducted in a safe and regular manner.

3.9.1  Right of Way and Turns:

  • The leading rider always has the right of way and must be given priority to make a turn on the inside. Riders behind the leader must allow enough space (at least 10 meters) for the leading rider to complete his/her turn safely.
  • No passing during tight turns: Riders are prohibited from overtaking others while in the middle of tight turns (greater than 90 degrees). Attempting to pass riders while they are executing a tight turn will result in penalties for reckless behavior.
  • Wider turns (90 degrees or less): Passing on the outside is allowed during wider turns where there is ample space to overtake safely.

3.9.2  Passing Zones:

  • Overtaking or passing is permitted in designated passing zones and during wider turns (90 degrees or less). These areas will be clearly marked and communicated during the rider briefing.
  • Riders attempting to pass on wider turns must ensure they maintain a safe distance and pass from the outside unless otherwise specified by the Chief Referee, approved by the Race Director.

3.9.3  Reckless Passing Penalty:

  • lf a rider overtakes the leading rider within 10 meters of a turn, especially on the inside of a tight turn, it will be considered reckless behavior. The overtaking rider may be subject to a penalty, including time penalties or disqualification, depending on the severity of the infraction.

3.9.4  Suggested Turn Line:

  • Riders are encouraged to take an outside line when approaching a turn, allowing them to cut inside closer to the turn exit. However, the leading rider’s path must be respected, and aggressive overtakes during the turn entry must be avoided.

3.9.5  Maintaining Safe Distances:

  • All riders must maintain a safe distance between themselves and other competitors. Tailgating or riding too closely behind another rider is considered dangerous and rnay result in a penalty if it leads could to unsafe conditions or accidents.

3.9.6  Avoiding Collisions:

  • Riders must always take precautionary measures to avoid collisions, especially when overtaking or navigating through turns. lntentionally causing a collision or failing to attempt avoidance will result in severe penalties, including potential disqualification.

3.9.7  Overlapping Riders:

  • lf a rider is being lapped by a faster cornpetitor, the slower rider must yield and allow the faster rider to pass. Failure to yield in a timely manner may result in a penalty for the slower rider.

3.9.8  Communication and Safety Gestures:

  • Riders must use hand signals to indicate their intentions when stopping or exiting the course. This cornmunication is essential for rnaintaining safety and avoiding unexpected manoeuvers that could lead to collisions.

4.  Bib/ Competitor Number Assignment

4.1  Assignment Procedure:

4.1.1  Bib or Rider numbers will be assigned to each rider during the registration process for the event, after verification of the obligations to fullfill before the event.

4.1.2  Start numbers will be assigned to other participants based on a first-carne, first-served

basis or as decided by the event organizer.

4.1.3  Numbers will be between 01 and 99.

4.2  Display of Bib/ Competitor Numbers
4.2.1 Start nurnbers must be clearly displayed on each rider

4.2.2  Failure to display the assigned start number will result in a penalty or disqualification.

5.  Event Services and Support 

5.1  Paddock Area

5.1.1  The paddock area will be a designated space where riders can set up, maintain, and charge their equipment.

5.1.2  The paddock will provide basic amenities, including:

  • Shelter, space to store eFoil and use of handtools for minor repairs.
  • Chairs for each rider.
  • Electrical outlets for board charging

5.2  Service Centers

5.2.1  Participating manufacturers or independent service teams will be allowed to set up service centers within or near the paddock area.

5.2.2  Service centers are responsible for offering technical support, including board repairs and tuning.

5.2.3  Service centers must be registered with the event organizer in advance and comply with local paddock regulations.

5.3  Board Storage

5.3.1  For multi-day stays, a secured overnight storage area can be provided in basic form on participants’ demand for eFoils and equipment, without guarantee against theft.

5.3.2  The storage area will be monitored by event staff and security, ensuring the safety of all stored equipment.

5.3.3  Riders can be required to store their eFoils in this designated area to ensure the safety and organization of the event.

6.  Anti-Doping and Safety Measures 

6.1  Anti-Doping Policy

6.1.1  The event will adhere to the World Anti-Doping Agency (WADA) and national rules, and all riders are required to comply with anti-doping regulations.

6.1.2 Random drug tests may be conducted during the event, and any rider found to be in violation of the anti-doping policy will at least be disqualified for the actual event.

6.2  Alcohol Testing

6.2.1  Riders may be subjected to alcohol and drug testing prior to or during the event to ensure they are not impaired.

6.2.2  A rider who tests positive for alcohol and/or drug consumption can be disqualified from the event immediately.

6.2.3  Refusal to take an alcohol and/or drug test will be treated as a positive result, resulting in automatic disqualification.

7.  Penalty and Protest Procedures 

7.1  Protest Procedures

7.1.1  Riders may file a formal protest if they believe another rider has violated the rules or equipment regulations.

7.1.2  All protests must be submitted in writing to the Chief Referee within 1 hour of the race conclusion and must be accompanied by a 200 EUR protest fee.

7.1.3  The protest will be reviewed by a Protest Jury, and the protest fee will be refunded if the protest is upheld.

7.2  Penalty System 

7.2.1  Penalties will be issued for the following violations:

  • Missed buoys without correction: 30-second time penalty.
  • Unsportsmanlike conduct (e.g., deliberate blocking, dangerous riding): Warning, followed by disqualification for repeated offenses.
  • Failure to comply with safety gear regulations: Disqualification until corrected.

7.2.2 Riders may appeal penalties through the formal protest process, provided the appeal is lodged within the designated time frame.

8.  Track Design and Length 

8.1  Track Parameters 

8.1.1  All race tracks must be designed to take a minimum of 45 seconds per lap to complete under standard conditions, ensuring that the track offers a fair balance between speed and technical skills.

8.1.2  The total track length must be at least 1 kilometer for each lap.

8.1.3  The racecourse must maintain a water depth of at least 125 cm throughout the entire course to ensure rider safety and avoid damage to equipment.

8.1.4  The course must be placed at least 15 meters away from any shallow areas (water depths of less than 125 cm) to prevent accidents or damage to the eFoils.

8.2  Buoy Placement 

8.2.1  Buoys must be strategically placed to guide riders through the course. Each buoy must be clearly visible and marked on the race map provided to participants.

8.2.2  Riders are required to navigate around buoys according to the designated race pattern. Missing a buoy without correction will result in a 30-second penalty.

8.2.3  For certain races, a penalty buoy may be implemented as a method to correct missed turns or missed buoys. Riders must navigate this penalty buoy if they miss one of the course buoys to avoid penalties.  The finish gate and starting line must be clearly marked with buoys or visible markers, and the race will be complete when a rider crosses the finish line after completing the required number of laps.

8.3  Track Design Modifications

8.3.1  Track modifications may be made during the event at the discretion of the Race Director, especially in cases of safety concerns, weather changes, or unexpected hazards.

8.3.2  Any changes to the track layout will be communicated to riders in advance, either during the rider briefing or by posting updates at the event information desk.

9.     Emergency Response Plan 

9.1      Safety Personnel

9.1.1     A minimum of two safety boats or personal watercraft must be present on the water during all races, assisted by trained personnel certified in first aid and water rescue.

9.1.2     As the race area is very near to the local yachtingclub, all necessary first aid kits and equipment, as well as AED machine, are in fast reach.

9.1.3  Safety boats are in constant communication with race officials to monitor the course tor accidents or emergencies.

9.2      Medical Setup

9.2.1     A dedicated medical area with AED and professional medics is reserved on the beach or event site, with a clear path for emergency vehicles such as ambulances.

9.2.2 First-aid personnel will be present at all times during the event, and an ambulance service is in 5-minutes reach during the event and competitive rounds (e.g., finals or knockout rounds).

9.2.3     In case of an accident, injured riders must be immediately evacuated to the designated medical area for assessment.

9.3     Emergency Procedures During the Race

9.3.1     In the event of an accident, a Yellow Flag will be raised by the Flag Marshal, indicating that riders must proceed with caution while the safety team assesses the situation.

9.3.2     lf a serieus injury occurs or the safety team deerns it necessary to intervene, a Red Flag will be raised and the race will be stopped immediately.

9.3.3     In the case of a Red Flag, all riders must return to the starting area or a designated safe zone on the course, as instructed by race officials.

9.3.4     The Race Director will decide whether to restart or cancel the race based on the severity of the incident.

9.4      Weather Conditions

9.4.1 The Race Director has the authority to suspend or postpone the race in the event of unsafe weather conditions, such as high winds, thunder and lightning.

9.4.2     Racing can be postponed or canceled if wind speeds exceed 15 knots or if wave heights exceed 30 cm.

9.4.3  All decisions regarding weather conditions will be communicated via the event information board or directly by the Race Director during the race.