The medical certificate remains one of the most scrutinized documents by the organization of the Grand Raid of La Réunion. For the 2026 edition, this administrative piece can block a registration that has been validated by the draw or the package. The form to be filled out, the type of examination expected, and the validity periods follow rules specific to ultra-trails, distinct from those applicable to classic road races.
Medical certificate and ultra-trail: why the Diagonale des Fous does not follow the common rule
Since 2024, French legislation allows most running races to replace the medical certificate with the Parcours Prévention Santé (PPS), a health self-questionnaire validated by the French Athletics Federation. This evolution concerns 10 km races, half-marathons, and even some short trails.
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Ultra-trails with high physical commitment escape this simplification. The Marathon des Sables, for example, requires a medical certificate on a dedicated form accompanied by a dated and signed resting ECG. The Diagonale des Fous follows this same logic: a specific, annual, and detailed medical certificate remains mandatory, regardless of the PPS.
This regulatory discrepancy has a direct consequence on the preparation of the file. A runner accustomed to classic FFA trails, where the PPS is sufficient, may mistakenly assume that the same procedure applies to the Diagonale des Fous. The information to know about the medical certificate for the Diagonale des Fous 2026 on Bougez Chez Vous details the administrative steps that accompany the validation of the bib number.
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Medical examination for the Diagonale des Fous: what the doctor needs to check
The certificate expected by the organization is not just a simple stamp of convenience placed in five minutes. The document, downloadable from the runner’s personal space on the Grand Raid website, contains specific sections that the doctor must fill out.
The official form of the Grand Raid
The certificate must be written on the form provided by the organization. A generic certificate written on plain paper will not be accepted, even if it mentions the fitness to practice trail running in competition. The doctor signs a document that holds him responsible for the runner’s ability to participate in an event of more than 160 km with considerable positive elevation gain.
Cardiological assessment: the question of the ECG and exercise test
The trend observed in engaged ultras in recent years is towards a strengthening of cardiological requirements for runners over 40 or 50 years old. Several organizers explicitly request a resting ECG, or even an exercise test, for profiles at cardiovascular risk or beyond a certain age.
For the Diagonale des Fous, even if the exercise test is not always formally required for everyone, many sports doctors recommend it before signing the certificate. A normal resting ECG does not detect all anomalies that may reveal themselves after several dozen hours of effort at altitude and in tropical heat.
Field feedback varies on this point: some general practitioners sign the form after a standard clinical examination, while others systematically refer to a cardiologist. Consulting a sports doctor familiar with ultra-trails reduces the risk of an incomplete or rejected certificate by the organization.
Validity periods and calendar: when to get your medical certificate
The most common trap concerns the date of the certificate. The Grand Raid organization imposes a limited validity period, generally one year before the date of the race. A certificate made too early will be expired at the time of the administrative check.
The Grand Raid usually takes place in October. Here are the temporal markers to keep in mind:
- Deadline for submitting the certificate: set by the organization, usually a few weeks before the start. This date is communicated in the runner’s space after confirmation of registration.
- Optimal window for the consultation: between the end of spring and the beginning of summer, allowing time to schedule any additional examinations (ECG, exercise test) if the doctor deems them necessary.
- Safety margin for cardio examinations: appointment delays with a sports cardiologist can reach several weeks during the summer, especially in mainland France. Anticipating as early as May or June avoids being without a valid certificate at the start of the school year.
Common mistakes on the Grand Raid medical certificate
Several files are rejected each year for reasons that could have been avoided. The most common causes of rejection deserve to be known before making an appointment.
- Using a generic certificate instead of the official form downloaded from the Grand Raid runner’s space.
- Omitting the explicit mention of fitness for competition in ultra-trail. A certificate mentioning only “fit for running” may be deemed insufficient.
- Submitting a certificate whose date exceeds the authorized validity period at the time of the administrative check.
- Not scanning or photographing the document legibly: the doctor’s signature, stamp, and date must be perfectly visible on the uploaded file.
The digitization of the certificate is done via the runner’s personal space on the Grand Raid website. A blurry, cropped, or low-resolution file results in a request for resubmission, which takes time.
The medical certificate for the Diagonale des Fous is not a formality to be dealt with at the last minute. The combination of a specific form, potentially lengthy examinations to obtain, and a strict validity date makes it one of the points in the registration file where anticipation makes the difference between a confirmed bib number and a canceled registration.