The registration process for the historic 100th edition of the International Six Days of Enduro (ISDE), aka the FIM Enduro of Nations is officially open for Moto Clubs in the Club Team Award (CTA) category – not riders yet.

The oldest event on the FIM calendar, the FIM International Six Days Enduro or ISDE as it widely known as, was first staged in Britain’s Lake District back in 1913. 100 years later the Six Days is still widely celebrated as the ultimate test of off-road rider and machine with a punishing six-day schedule across challenging terrain.

For the momentous occasion of the event’s centenary, the event heads to Portugal for the fourth time in its history and picturesque town of Grandola in the Alentejo region.

Enough with the waffle because what you need to know is the 2026 the registration process is open.

Four-step registration process

Like last year, entry is broken down into four separate steps and is under way now with the initial stage from March 6-22 and for Moto Clubs to register teams in the Club Team Award (CTA) category – not riders.

Step two, from March 23 until April 12, is when CTA riders must register and specify their National Federation (FMN), the Moto Club they will represent and the CTA they intend to compete for.

Running from April 13 until May 17, step three is when the Club Teams must approve all rider affiliation requests to finalise the pre-registration process. Step three is also when all FMNs must ratify CTA team compositions as well as pre-register World Trophy Teams and pay fifty per cent of registration fees to the local organiser.

The fourth and final step runs from May 18 until July 12 when federations complete the process for their World Trophy Teams and CTA Teams and complete payments to the local organiser.

Registration here: registration.fim-6days.com

The biggest event on the global Enduro calendar, the 6DAYS FIM Enduro of Nations attracts professional and amateur riders from more than thirty countries spread across six continents who gather annually to determine the sport’s leading nations.

The one-hundredth edition of the 6DAYS FIM Enduro of Nations will take place in the Alentejo region of Portugal, from 12-17 October 2026.

More information: www.fim-6days.com