IRONMAN 70.3 Puerto Rico San Juan, Puerto Rico   Mar 15, 2026

Old San Juan Beckons
Old San Juan is like a museum of living history, where you can explore the impressive San Felipe del Morro and San Cristóbal castles or just wander through the cobblestone streets and soak up the unique architecture of the city. The triathlon community here provides remarkable support at this best-loved event.

Participants will swim 1.2 miles (1.9 km), which will be held in the protected waters of the Condado Lagoon. Spectators and Athletes will have a great view of the Swim Course from the San Juan Beach, the Dos Hermanos Bridge and the Caribe Hilton’s San Geronimo grounds. Water temperatures are expected to be around 78° Fahrenheit (26° Celsius). The transition between the swim and bike will take place in the Sixto Escobar Stadium, adjacent to the Caribe Hilton.

Athletes will endure a 56-mile (90 km) bike ride. The majority of the bike course will cover the northern part of the island from San Juan heading west towards the municipality of Dorado. During this course, the athletes will enjoy beachfront views and some short but challenging hills.

The running course will take athletes on a 13.1 mile (21 km) run through the city of Old San Juan. Runners will make their way through the northern part of the islet with breathtaking views of the Atlantic Ocean, running past 16th century Spanish architecture on their way to reach the turn around point at the entrance of the famous Fort San Felipe del Morro. This 16th century citadel, constructed to protect the town from attack by sea, is one of the highlights of any tour of the old city, a rocky web of tunnels and barracks, towers and prisons. Probably the most famous monument from Spanish colonial times, the fortress stands out on a rocky islet, forever a reminder of a different age. Runners will return to the transition area to start the second and final loop.

Swim: BAY
Bike: FLAT
Run: HILLY

Avg Air Temp: 80° F / 27° C
Avg Water Temp: 80° F / 27° C