I have done some googling and cannot find a good answer: what is the average improvement of college distance runners from year to year? I have heard many different numbers, for example:
3%/season for 8.85% over all four years
5-10% through college
However I have also heard talk of Freshman slumps or a decrease in improvement after Sophomore year (both can't be right, can they?!). Does anyone have data on the typical year to year improvement of runners?