
IRONMAN Cascais Portugal
Event summary
Cascais, Portugal, becomes the epicenter of long-distance triathlon when IRONMAN Portugal hosts both the iconic full-distance IRONMAN and the IRONMAN 70.3 on the same weekend. Athletes will take on the Atlantic swim in the sheltered Ribeira Beach, race through a scenic but challenging bike course fully closed to traffic, and finish with a flat and vibrant run along the Cascais coastline. The event attracts professionals chasing podiums and World Championship slots, as well as age-groupers seeking the ultimate endurance challenge. With a festive atmosphere, an international field, and world-class organization, it’s one of Europe’s most celebrated IRONMAN weekends.
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ironman.com/races/im703-cascais
IRONMAN Portugal – Full Distance
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Swim: 3.8 km (2 laps) in calm, sheltered waters at Praia da Ribeira, Cascais.
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Bike: 180 km (2 laps) along the Atlantic coastline and Sintra mountains, fully closed to traffic.
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Run: 42.2 km (4 laps) flat course along the Cascais waterfront.
IRONMAN 70.3 Portugal – Half Distance
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Swim: 1.9 km (1 lap) in Praia da Ribeira.
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Bike: 90 km (1 lap) on the same scenic and traffic-free course.
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Run: 21.1 km (2 laps) on the seafront promenade.
Both races start and finish in the heart of Cascais, with rolling swim starts, comprehensive athlete support, and a festive atmosphere throughout the weekend.
Location
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IRONMAN 70.3 1.900m swimming + 90km cycling + 21km running
IRONMAN 3.800m swimming + 180km cycling + 42km running
Benefits
🎽 Athlete Kit: Race bib, timing chip, swim cap, transition bags, athlete wristband, official event backpack
🏅 Finisher Prizes: Finisher medal, podium trophies for top 3 overall and by age group, World Championship slots for Kona and IRONMAN 70.3 Worlds
🛟 Support: Fully staffed aid stations, medical teams, lifeguards, bike mechanics, and volunteers throughout the course
🛡️ Insurance: Personal accident coverage for all participants
🥤 Aid Stations: Regular solid/liquid nutrition stops on bike and run courses
🚿 Facilities: Showers and athlete recovery area post-race, massage services available
📸 Extras: Professional race photography, live athlete tracking, official merchandise, and athlete village access