RITMO
Personalize my pace

Plan your race with the elements in mind

Weather-adjusted finishexample3:30:00

Goal 3:30:00, right on your goal for 60°F, 50°F dew point, on a flat course. Tune the panel below for your race.

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Your pace band

Mile-by-mile pace and split times for race day.

Factored in
Factors in this planFinish timeTemperature
Your band prints once this plan is built.
Free

Running Sydney, NYC or Chicago?

Your plan above assumes a flat course. Get every real hill on the route factored in — GPS-derived, free.

SydneyChicagoNYC
Most accurate

Build your full race plan

The guided planner walks your race, course, and date — and builds your mile-by-mile plan around the forecast.

Personalize my pace

Built on dew-point heat-stress and grade-adjusted pacing models — the factors that separate a goal day from a blow-up.

Heat + humidityDew point — not just temperature — drives how much you slow down.
Real terrainPer-mile GPS grade, not a flat course average.
Real forecastsRace-day weather pulled for your date and start line, not a guess.