This online tool helps runners predict race times based on performance in a recent race of a different distance. For example, a user can input their finish time for a 5k to estimate their potential marathon time. It employs a formula developed by Greg McMillan, a renowned running coach and exercise physiologist, based on the concept that a runner’s pace typically slows predictably over longer distances.
Predictive race time tools are valuable for runners of all levels, from beginners establishing realistic goals to experienced athletes fine-tuning training plans. Understanding potential finish times allows for strategic pacing during races and provides a benchmark for measuring progress. McMillan’s formula, while not perfectly predictive due to variables like individual physiology and training, offers a widely respected and utilized method for race time estimation. Developed over years of coaching experience, it provides a practical framework for runners seeking to optimize their performance.
