Course library

Triathlon Course Profiles

Browse real IRONMAN and 70.3 course profiles. Each profile records swim, bike, and run conditions so you can adjust your neutral splits for race-day friction.

IRONMAN Florida

140.6

Panama City Beach, Florida

A flat, fast full-distance race profile that suits athletes chasing a steady day and a personal-best style plan.

Difficulty:Moderate

Swim: chopBike: flatRun: flatWetsuit likely

IRONMAN Texas

140.6

The Woodlands, Texas

A fast full-distance course profile with a lake swim, mostly closed-road riding, and a high-energy run environment.

Difficulty:Easy

Swim: calmBike: fastRun: flat

IRONMAN Arizona

140.6

Tempe, Arizona

A late-season desert full-distance profile where steady pacing, dry-air fueling, and wind management matter.

Difficulty:Moderate

Swim: calmBike: rollingRun: flatWetsuit likely

IRONMAN California

140.6

Sacramento, California

A fast Sacramento full-distance profile with a downriver swim and flat bike/run style planning assumptions.

Difficulty:Easy

Swim: calmBike: fastRun: flatWetsuit likely

IRONMAN Chattanooga

140.6

Chattanooga, Tennessee

A full-distance profile known for a fast downriver swim, rolling bike feel, and a community-heavy run.

Difficulty:Hard

Swim: calmBike: rollingRun: rolling

IRONMAN 70.3 Oceanside

70.3

Oceanside, California

A coastal 70.3 profile with a sheltered harbor swim, a Camp Pendleton bike route, and a flat-fast run with turns and level changes.

Difficulty:Hard

Swim: calmBike: rollingRun: rollingWetsuit likely

IRONMAN 70.3 Augusta

70.3

Augusta, Georgia

A fast Southern 70.3 profile with a downriver swim, rural bike course, and flat spectator-supported run.

Difficulty:Moderate

Swim: calmBike: rollingRun: flatWetsuit likely

IRONMAN 70.3 Chattanooga

70.3

Chattanooga, Tennessee

A 70.3 profile with a fast downriver swim, rolling Tennessee bike, and riverfront run energy.

Difficulty:Hard

Swim: calmBike: rollingRun: rolling

How to compare courses

Start with your neutral split from a calculator, then pick the course profile that most closely matches race-day conditions. Compare swim friction, bike terrain, run profile, and wetsuit likelihood before deciding whether the goal time is realistic.

Use swim condition to adjust open-water pace expectations.
Use bike profile to protect the run from overbiking.
Use run condition to add heat, hills, or rolling-course buffer.

Example race read

A flat 70.3 and a rolling 70.3 can have the same distance but very different execution. The faster course may reward steady aero riding, while the harder course may need a lower bike target and a more conservative run split.

Limits of course profiles

These pages are planning profiles, not official race guides. Always verify the athlete guide, water temperature rules, final route, aid-station locations, and cutoff details before treating a course-adjusted split as race-day truth.

Compare with the calculator

Once you pick a course, open the course adjustment calculator to see how the conditions change neutral splits versus race-day estimates.

Open the course calculatorEnter neutral swim, bike, run paces and apply the course friction modifiers.Check cutoff bufferCompare the course-adjusted plan against official cutoff clocks.See validation examplesCheck whether the calculator output looks realistic for the scenario.

Trust and methodology

How this page should be used

Last updated

July 13, 2026

Maintained by

M Imtinan Farooq

Status

Planning estimate, not a race guarantee

Formula summary

Race-day estimate = neutral splits adjusted by swim, wetsuit, bike, and run modifiers.

Key assumptions

Course labels are broad planning categories, not official segment-by-segment modeling.

Limitations

Official athlete guides, weather, route changes, and safety instructions override this page.

Full formulas, source notes, and limitation details are maintained on the methodology page. Use official race guides for event rules, cutoff times, venue policies, and safety instructions.