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Average 10k race times by age, gender, and country

Warming up significantly improves muscle performance, particularly speed and power, by increasing muscle temperature. Both passive heat methods and light exercise warm-ups work, but mimicking the actu...

How fit are you? Calculate your VO2 max with the Rockport 1-mile walk test.

Finish times for various distances at men's world record paces

The London Marathon will be held across two days in a special one-off edition of the event in 2027, organisers have confirmed.

Calculate your lean body mass with the most popular methods

Finish times for various distances at men's world record paces

Professor Tracey Loughran discusses changing perspectives on women's running in 1980s Britain

An interview with parkrun founder Paul Sinton-Hewitt

Calculate calorie and fat burn for any exercise or activity

runbundle is a collection of resources for runners of all abilities. We have a mix of tools & calculators, articles, training sessions, interviews, and coaching advice

Assess your fitness with this gold standard test

People who combine different types of exercise - such as running, cycling and swimming - seem to live longer than those with less varied workouts

How fit are you? Estimate your VO2 max from your heart rate

How good is your marathon time? Find out with our interactive guide

Average marathon race times by age, gender, and country

Free, timed, weekly 5km run in Paris! For all standards

What's the maximum number of parkruns you can do in 2026?

Calculate your VO2 max with a 12-minute run

The elite coach popularized exercise science among recreational runners.

Instant lap and split times for track runners

How good is your 5k time? Find out with our interactive guide

YouTube video by cozmouz

Calculate energy requirements for treadmill exercise

A running session to get a bit of speed and acceleration in the legs

Calculate calorie burn for stationary biking

An interview with Colin Jackson and Ben Tansley

Join us together with thousands of people around the world at the exact same time.

What's the maximum number of parkruns you can do in 2025?

A running tip for each of the 12 days of Christmas

A top session for developing pace awareness and speed