I ran the Chicago Marathon in October and it was truly an amazing race experience. You can read my race recap here. I might go so far as to say it is my favorite marathon that I have ran. The spectators lined the whole course. The support and encouragement for the whole 26.2 miles gives me goosebumps just thinking about it. It was so inspiring. You know that saying that if you start to lose faith in humanity go watch a marathon? THIS is the marathon! The Chicago Marathon lottery entry period will open on Tuesday, March 10 at 12 p.m. (US Central Time) and will close six weeks later on Tuesday, April 21 at 12 p.m. (US Central Time).