01·Course Characteristics
With its tropical humidity, windy coastal bike course, and famously brutal hilly run, success in Puerto Rico depends entirely on disciplined heat management and smart pacing.
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02·Course by Section
A single-loop swim in the protected, brackish waters of the Condado Lagoon. You will enjoy a favorable current on the outbound stretch, but face a challenging head-current returning and choppy waters under the Dos Hermanos Bridge.
A flat and fast two-loop course along the northern coastline towards Dorado. While highly aerodynamic, you will face strong ocean crosswinds and minor overpass ramps near transition.
A challenging multi-loop course traversing historic cobblestone streets, featuring steep, relentless climbs through Old San Juan. With zero shade and intense tropical heat, this leg is the ultimate test of endurance.
03·AVG beginners' Training Timeline
This 16-week plan is engineered for San Juan's specific climate and terrain. We construct a strong aerobic base, transition to hill-specific muscular endurance to conquer the cobblestones, and implement heat-simulated bricks to ensure you can confidently finish this demanding tropical race.
Aerobic Foundation
Establish a resilient aerobic base and introduce early heat-adaptation strategies.
Strength & Power Build
Develop bike power and run leg durability to manage the steep hills of Old San Juan.
Race-Specific Endurance
Extend sustained aero-position tolerance and non-wetsuit open water swimming volume.
Peak & Heat Simulation
Execute key brick sessions under heat-simulated conditions and practice hydration strategy.
Taper & Sharpen
Reduce training volume while keeping intensity high to ensure you are fresh and hydrated.
Adapts to your fitness, schedule & recovery every week.
Personalize this timeline04·Race-Day Execution
Expect intense tropical humidity exceeding 80% and temperatures peaking at 29°C. Dump ice from the aid stations down your tri-suit and under your cap at every opportunity to artificially lower your core temperature.
High sweat rates require proactive hydration and salt intake. Consume high-sodium electrolytes and fluids every 15 to 20 minutes on the bike, and continue taking fluids and gels at run aid stations.
Keep your effort strictly conservative on the flat bike course to avoid overheating before you start the run. Save your legs and matches for the steep, punishing hills of Old San Juan.
Leave an extra pair of running shoes or slides at the swim exit to protect your feet during the long 800m run to transition. Opt for a conservative front wheel depth to handle coastal crosswinds.
The water temperature in the Condado Lagoon typically averages between 78°F and 80°F (26°C to 27°C) on race day. Because this is above the 76.1°F limit, the swim is non-wetsuit legal for competitive age-group athletes. You will swim a single-loop course in brackish, protected waters, but prepare for a head-current on the return stretch and choppy conditions under the Dos Hermanos Bridge.
The 13.1-mile run course through historic Old San Juan is rated moderate to hard and is famously brutal. It features a multi-loop layout with approximately 715 feet of total elevation gain, characterized by steep, relentless climbs on paved streets. With virtually no shade and intense tropical heat, managing your core temperature with ice and fluids at the aid stations is critical to finishing strong.
The 56-mile bike course is a flat, fast, two-loop out-and-back route along the northern coastline towards Dorado, with total elevation gain ranging from 583 to 1,234 feet due to overpasses and bridge rollers. While the flat terrain is ideal for staying in an aerodynamic position, you must prepare for strong, exposed ocean crosswinds and occasional potholes on the asphalt. Pacing conservatively is key here to save your legs and prevent overheating before the run.
The race features a single, centralized transition zone (T1/T2) located at Sixto Escobar Stadium / Parque del Tercer Milenio, which simplifies your pre-race setup. However, there is an exceptionally long 0.5-mile (800-meter) run from the swim exit to T1. It is highly recommended that you leave an extra pair of running shoes or recovery slides at the swim exit to protect your feet from the hot asphalt during this long run.
You should fly directly into Luis Muñoz Marín International Airport (SJU), which is conveniently located just a 15-minute drive from the host venue. Booking your lodging in the Condado, Miramar, or Old San Juan areas is highly recommended because it puts you within walking distance of the transition area, the swim start, and the local expo. This proximity minimizes race-week travel stress and simplifies your logistics.
Your Personalized Plan
FE26 builds your plan around your Strava data, your real schedule, and the exact demands of IRONMAN 70.3 Puerto Rico— then adapts every week to how you actually perform.
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