Cascais · Oeiras · Lisboa
Three cities. One Marginal.
From Cascais through Oeiras to Lisboa, one legendary coastal road brings three partner cities together. Choose the Half Marathon or the 10K and experience Portugal in motion.
More than a race
Three cities united by one extraordinary coastline.
“A Marginal” is the famous coastal road linking Cascais, Oeiras and Lisboa. For one unforgettable morning, these three partner cities become one continuous running experience.
Begin in Cascais, run through the coastal landscapes of Oeiras and finish in Lisboa. Along the way, beaches, forts, marinas and the wide mouth of the Tagus reveal the character of each city before the final kilometres among the historic monuments of Belém.
Three cities, two distances, one event
Run Cascais, Oeiras and Lisboa
The Half Marathon crosses the full Cascais–Oeiras–Lisboa coastal axis, while the 10K begins in Oeiras. Both races celebrate the same partnership and share the same spectacular finish in Belém.
Real runners, real Marginal
Experience the energy of the race.
A living Portuguese tradition
A shared history between Cascais, Oeiras and Lisboa.
The Cascais-Oeiras-Lisbon route has been part of Portuguese athletics for over eight decades as a team relay race.
Born as a legendary relay race linking three neighbouring municipalities, the event now opens this celebrated journey to individual runners through the Marginal Half Marathon and Marginal 10K.
The journey
From Cascais through Oeiras to Lisboa.
Race, stay, discover
One event. Three destinations to discover.
Make the race part of a longer escape. Discover the Atlantic character of Cascais, the coastal heritage of Oeiras and the culture, gastronomy and monuments of Lisboa.
Plan your stay