Sunday, March 15, 2026 · San Juan, Puerto Rico
11 days until race day
IRONMAN 70.3 Puerto Rico takes place in San Juan, Puerto Rico as an IRONMAN 70.3 race. Athletes face a bay swim in calm, sheltered waters, followed by a flat and fast bike course and a hilly and demanding run course.
Bay
1.9 km / 1.2 mi
Flat
90 km / 56 mi
Hilly
21.1 km / 13.1 mi
Practice open-water swimming in sheltered venues to simulate the calm bay conditions on race day.
Focus on sustained power and aerodynamics for the flat bike course — time trial position and pacing are key.
Prioritize hill training and practice managing effort on steep climbs to save energy for the entire run course.
Rehearse your transition routine and nutrition plan during training so race day execution is automatic.
Transition's AI coach builds a training plan specifically adapted for this course. Your plan accounts for the bay swim conditions, the flat bike terrain, and the hilly run profile — so you show up on race day fully prepared.
Your plan adjusts weekly based on your progress, recovery, and schedule changes.
Workouts target the exact demands of this course's swim, bike, and run profiles.
Nutrition rehearsal, taper optimization, and pacing strategy built into your plan.
“Transition has helped me improve my Ironman training more than any other method I've encountered in my triathlon journey. It's incredibly precise and personalized.”
Carlos Rebelo — Triathlete
Our AI-powered ironman 70.3 plan adapts to your fitness, schedule, and this specific course. Start training smarter today.
View IRONMAN 70.3 PlanTraining for IRONMAN 70.3 Puerto Rico requires a structured plan that addresses the specific course demands: a bay swim, flat bike, and hilly run. Transition's AI coach builds a personalized plan that adapts to your fitness level and progressively prepares you for these exact conditions.
IRONMAN 70.3 Puerto Rico takes place in San Juan, Puerto Rico as an IRONMAN 70.3 race. Athletes face a bay swim in calm, sheltered waters, followed by a flat and fast bike course and a hilly and demanding run course. The race takes place in San Juan, Puerto Rico and attracts athletes from around the world.
Most athletes need 16-20 weeks of dedicated training for a IRONMAN 70.3. This allows sufficient time for base building, race-specific preparation, and a proper taper. Transition's AI coach can create a plan that fits your timeline and current fitness.
