We create the perfect combination of breathtaking sceneris and challenging courses for athletes to cope with the forces of nature. The extraordinary Cascais Triathlon is “Triathlon Territory”, the birthplace of IRONMAN in Portugal.
We are able to overcome ourselves and achieve much more than we imagine, with taste for what we do, discipline, dedication and a great sense of mission. We make Triathlon history in Portugal.

Jorge Pereira | Fundador / Director 3 Iron Sports


Creating the Cascais triathlon has been one of the most extraordinary tasks thus far undertaken in Portugal in this sporting modality.

This historic location, full of history, beautiful scenery, kind and gentle people, and top level hotel facilities, has brought both colour, and what they were looking for– an event that leaves its mark- into its participants´ lives.

The herculean task of getting what is logistically an extremely exigent event ´up to spec´ resulted in the success that we anticipated for it, with thousands of athletes, accompanied by their families, friends and colleagues, visiting Cascais and bringing this location to the notice of the triathlon world at large.

As a result, the World Triathlon Corporation, which has the biggest races in the world under its banner, invited Cascais to represent Portugal on the IRONMAN 70.3 World Championship circuit, from 2017 onwards. A choice that honours Cascais, our country and 3 Iron Sports.

  • It was well worth it for the phenomenal course, for the superb organization by 3 Iron Sports and for the closeness of the competition. The Cascais Municipal Council was the driving force behind this great event that has put Cascais back on the national and international triathlon map. [2015]

  • It was wonderful to take part in this race, in my home town, surrounded by my people, on my routes, where everything is familiar. We have the most beautiful race in the world and next year we shall have even more!
  • It has everything to become one of the best (races) in the world. Spectacular! Loads of spectators, no waves and no jellyfish! I could not be happier, I did not expect to win. [2015]

  • It was an amazing day, racing here is an incredible experience, it has been a long time since I felt so good. Even when I was ´in the zone´ I was still able to appreciate the beauty of the course. [2015]

  • Spectacular. Congratulations on a splendid race. [2015]

  • After having enjoyed a great day of sport at the Cascais Triathlon, I should like to extend my thanks to all those who made it possible. [2015]


The confirmation of a great event with more than 1200 athletes in a great day for the sport.

Go to photo gallery  and video  of the event.



Back to Cascais with its first edition of long distance, cascais Triathlon exceeds all expectations.

Got to photo gallery  and video  of the event.



Estoril enchants with the 3 Iron Sports second edition, the cold water and the wind in this edition do not frighten more than 600 athletes.

Got to photo gallery here .



In 2013 3 Iron Sports recovers the Estoril Triathlon. In just 3 years, it became a national event among the biggest triathlon events in Portugal. The return of the mythical event happened with more than 550 participants and its quality was dominant.

The future of the modality is written in the Municipality of Cascais, which places Portugal on the map of the world’s largest IRONMAN’s destinations.

Go to photo gallery here .