You'll also notice that we've widened the Recovery Run, Long Run and Easy Run pace ranges. We found that runners who wear speed/distance monitors were forcing themselves to jump right into the pace ranges whereas those who ran more by effort eased into the paces. So, we widened the range to better match what runners should do - start easy and gradually pick up the pace. Research and practical experience also taught us that while runners at the front of the pack did their easy runs slower than marathon pace, runners at the middle and back of the pack needed to spend more time at around marathon pace (or even slightly faster) so some runners will notice that their Endurance Workout paces should be a little faster.
We're proud that the McMillan Running Calculator is the World's #1 Online Running Calculator and that more than 10 million runners have used and verified it. And, this latest update is just the beginning to several enhancements that are in the works. In the near future, we're adding several upgraded options including recommended workouts, predictor workouts, heat adjustments for training and racing as well as several other cool functions. So, stay tuned as we continually offer more and more functionality to help you train smart and run fast.