Saturday, March 28, 2026 · Oceanside, CA, United States
24 days until race day
IRONMAN 70.3 Oceanside takes place in Oceanside, CA, United States as an IRONMAN 70.3 race. The course features a bay swim with minimal chop, a demanding bike course with significant climbing, and a rolling run course with gentle hills.
Bay
1.9 km / 1.2 mi
Hilly
90 km / 56 mi
Rolling
21.1 km / 13.1 mi
Train for calm open-water conditions and practice sighting in bay-like environments.
Prioritize climbing-specific bike workouts with sustained efforts at threshold to prepare for the demanding elevation.
Include hilly runs in your training to prepare for the rolling terrain and practice adjusting effort on inclines.
Practice race-day nutrition during training — dial in your fueling plan for the bike and run to avoid bonking.
Transition's AI coach builds a training plan specifically adapted for this course. Your plan accounts for the bay swim conditions, the hilly bike terrain, and the rolling 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 Oceanside requires a structured plan that addresses the specific course demands: a bay swim, hilly bike, and rolling 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 Oceanside takes place in Oceanside, CA, United States as an IRONMAN 70.3 race. The course features a bay swim with minimal chop, a demanding bike course with significant climbing, and a rolling run course with gentle hills. The race takes place in Oceanside, CA, United States 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.
