Sunday's was my 6th Chicago marathon and my lucky 13th marathon overall (6 Chicago, 5 Boston, NYC, and Tecumseh). Not sure what my favorite marathon is but I certainly know it's not Tecumseh and I'm not in love with the bridges of NYC although I want another shot there. I love Chicago for the crowds, location, spectator friendly course, and how fast the course is. I prefere to run in early October over November due to my peak training is usually mid August. As most of us are now aware of, it's hard to wait until November when you're ready in September.