Triathlon Calculators

Race estimators, transition tools, and multi-sport calculators.

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2 calculators available

Ironman Race TSS Planner

Work backwards from a TSS budget to find your optimal bike watts, run pace, and swim pace for Ironman or Ironman 70.3. Powered by Coggan & Allen's TSS framework.

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Race Day Nutrition Planner

Get a personalised fueling strategy based on your sport, race duration, intensity, and gut training level. Outputs include carbs per hour, hydration, sodium, and a ready-to-use execution plan.

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