MAS Running Calculator
Enter the result of your MAS (Maximal Aerobic Speed) test, we will quickly calculate your possible progress and your running pace from 5K to Marathon!

On Campus, we train thousands of runners, allowing us to estimate the progress you will make and the time you can achieve!
We use your MAS test result as a reference to which we apply the average percentage we observe in runners we train. The longer you train, the faster the time you can aim for will be!
For a more refined prediction based on your profile, sign up on Campus ⬇️

MAS is the smallest speed at which we reach our maximum oxygen consumption. In other words, it’s a speed at which the aerobic system quickly reaches its limit. You can obtain its value by taking a VAMEVAL type test.
At this speed, we quickly reach our maximum oxygen consumption. We can always accelerate, but the additional energy demand will be supplied exclusively by other energy systems (anaerobic system).

The body adapts to the stress it perceives. Working on your MAS in running maximally stimulates the aerobic system: oxygen transport and use are pushed to their limit. In situations of strain, the body seeks to improve.
With training, oxygen consumption increases and Maximal Aerobic Speed also strongly engages the anaerobic systems, which work in synergy with the aerobic system.
MAS thus helps improve the anaerobic system, the use of carbohydrates, and strengthens muscles and tendons against high mechanical stress, benefiting all runners.
A MAS calculator makes it possible to turn a theoretical value (Maximal Aerobic Speed) into concrete race paces. It helps runners structure their training, respect the right intensities, and avoid running too fast or too slowly. Using a MAS calculator optimizes the development of the aerobic and anaerobic systems and overall progress, while reducing the risk of overtraining or injury.
To use a MAS calculator effectively, you first need to know your actual MAS, obtained through a field test or in the lab. Then simply enter this value to get precise paces based on MAS percentages (80%, 90%, 100%, etc.). These paces should be used according to the workout goal (endurance, threshold, intervals), while respecting the effort and recovery durations set out in the training plan.
A MAS calculator is for all runners, from beginners to experienced athletes. It is particularly useful for runners who want to structure their workouts, prepare for a race (10K, half-marathon, marathon), or better understand their training paces. Whether you run for pleasure or performance, the MAS calculator is a simple and accessible tool for progressing in a consistent and sustainable way.