A Coach's Guide to MileSplit Mar 03, 2015

If you're new to using MileSplit, or you just want to find ways to be more efficient, check out the guides we've prepared.

Tutorial: Winter Season Rankings Explained Dec 08, 2014

The difference is in the lean: sprinters have to work harder to run indoor curves (and there are twice as many of them), and that has a significant effect on times in the 300 and 500.