Chicago Marathon Training Week 5 – Grand Teton and Yellowstone National Parks

Week 5 of Chicago Marathon training started routinely this week but picked up steam on Thursday with one of the hardest training runs I have done. It was interval training time! Try running 1.5 mile intervals times 3 at a pace of just above 7-minute-mile with a three-and-a-half-minute easy jog to recover. The last interval […]