Various training approaches will give you comparisons of the times you can run at different race distances based on a recent finishing time in another race. For example, each method may take your 5K time and from that estimate how fast you would run a marathon.
They also provide estimates of your pace in easy runs as well as during recovery intervals between speedwork reps.
Of course, these approaches don’t estimate times the same way. Out of curiosity I decide to compare these different time estimates on a spreadsheet. I didn’t have any sort of scientific hypothesis or goal behind this, other than mere curiosity.
- (Jack T.) Daniels Running Formula
- Jean Francois Harvey’s charts from Run Better
- Hanson Marathon Method
- Don and Meredith Fink’s IronFit Marathons After 40
- The book Build Your Running Body by Pete Magill et al
- Greg McMillan’s running calculator
- Sasha Pachev‘s calculator on his Ask Sasha website
- The FIRST (Furman Institute of Running and Scientific Training) Marathon Plan