Free running tools

Calculators for pacing, predicting and grading your races, and rankings built from millions of real race results.

Pace calculator

Your pace from a finish time, or your time from a pace, with mile splits for every goal.

Predict your 5K to marathon times from one race, and where each would place you.

Check your time against Boston, London, Chicago, New York, Berlin, Sydney and Tokyo.

The marathons where the most finishers ran a Boston-qualifying time.

The 5Ks, 10Ks, halves and marathons where finishers run fastest, by state.

How your time compares with the best for your age, as a percentage.

How much to slow down for the temperature and humidity on race day.

What's a good time? Finish times by age and gender at every distance.

Know your pace? See where it would place you. raceIQ ranks upcoming races by where you'd finish in your age group, using each race's past results.