IRONMAN 70.3

IRONMAN 70.3 Colombo

Sunday, February 22, 2026 · Colombo, Sri Lanka

Course Overview

IRONMAN 70.3 Colombo takes place in Colombo, Sri Lanka as an IRONMAN 70.3 race. The course features an open-ocean swim with potential swells, a flat bike course suited for time-trialing, and a flat and fast run course.

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Swim

Ocean

1.9 km / 1.2 mi

^

Bike

Flat

90 km / 56 mi

*

Run

Flat

21.1 km / 13.1 mi

Training Tips for IRONMAN 70.3 Colombo

1

Practice open-water swimming in surf conditions and work on sighting to handle ocean currents.

2

Dial in your aero position and practice holding steady power output, since this flat course rewards consistent effort.

3

Train for even pacing on flat ground with race-pace tempo runs and practice holding form when fatigued.

4

Practice race-day nutrition during training — dial in your fueling plan for the bike and run to avoid bonking.

How Transition Prepares You for IRONMAN 70.3 Colombo

Transition's AI coach builds a training plan specifically adapted for this course. Your plan accounts for the ocean swim conditions, the flat bike terrain, and the flat run profile — so you show up on race day fully prepared.

Adaptive Planning

Your plan adjusts weekly based on your progress, recovery, and schedule changes.

Course-Specific Prep

Workouts target the exact demands of this course's swim, bike, and run profiles.

Race-Day Ready

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

Recommended: IRONMAN 70.3 Plan

Our AI-powered ironman 70.3 plan adapts to your fitness, schedule, and this specific course. Start training smarter today.

View IRONMAN 70.3 Plan

Frequently Asked Questions

How do I train for IRONMAN 70.3 Colombo?

Training for IRONMAN 70.3 Colombo requires a structured plan that addresses the specific course demands: a ocean swim, flat bike, and flat run. Transition's AI coach builds a personalized plan that adapts to your fitness level and progressively prepares you for these exact conditions.

What is the IRONMAN 70.3 Colombo course like?

IRONMAN 70.3 Colombo takes place in Colombo, Sri Lanka as an IRONMAN 70.3 race. The course features an open-ocean swim with potential swells, a flat bike course suited for time-trialing, and a flat and fast run course. The race takes place in Colombo, Sri Lanka and attracts athletes from around the world.

How long should I train for IRONMAN 70.3 Colombo?

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.

View on ironman.com

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