Sesimbra Triathlon

The Federação de Triatlo de Portugal organizes various triathlon events throughout the year, including national championships and club competitions. These events take place across different regions of Portugal, such as Algarve, Lisboa, and Madeira, offering a wide range of distances and formats suited for all athlete levels.

Open to both licensed and age group athletes, many races are integrated into national and international cups, providing competitive opportunities from grassroots to elite levels. Unique Portuguese landscapes and coastal settings enhance the racing experience, creating an inspiring and festive atmosphere for participants and supporters alike.

The IM Cascais is a full-distance Ironman triathlon held in Cascais, Portugal, featuring the iconic 3.8 km swim, 180 km bike, and 42.2 km marathon run distances. This event offers a challenging and scenic course along the beautiful Portuguese coast.

Open to both licensed and non-licensed athletes, including relay teams, the race attracts a diverse field of triathlon enthusiasts. The course showcases unique coastal landscapes and rolling hills, making it both a physically demanding and visually stunning race.

The atmosphere is both competitive and celebratory, welcoming elite athletes and passionate amateurs alike. The event embodies the spirit of endurance sport with opportunities for individual and team participation.

IRONMAN 70.3 Cascais delivers a bucket-list half-distance on Portugal’s Atlantic coast: a sunrise swim in Cascais Bay, a rolling bike course featuring a unique loop inside the Estoril Formula 1 circuit, and an energetic coastal half-marathon lined with supporters. Mild weather, beaches, and Lisbon just 30 minutes away make this a perfect race-and-holiday combo. The event has earned Athletes’ Choice recognition and serves as a qualifier towards the IRONMAN 70.3 World Championship.

The Spirit of 78 Triathlon is a unique triathlon event held on October 10, 2026, along the Douro river between Porto and Gondomar, Portugal. The race starts and finishes at Freixo – Porto, celebrating the spirit of the original 1978 Hawaii triathlon with a focus on spontaneity, friendship, and a festive atmosphere.

Participation is limited to 80 athletes, including finishers from previous editions and selected newcomers. The event preserves the original competition conditions, including open water swimming supervised by friends on boats and open traffic with adherence to traffic rules. Athletes are responsible for their own support teams for nutrition and hydration, fostering a communal and supportive environment.