1. Chicago Marathon
Photo: Courtesy of Bank of America Chicago Marathon
2. Arlington Million
Photo:Â Four Footed Fotos
3. Shamrock Shuffle
Photo: Courtesy of Bank of America Shamrock Shuffle
4. Bike the Drive
Photo:Â John Langham
5. Susan G. Komen Mother’s Day Race for the Cure
Photo: Courtesy of Chicagoland Area Affiliate of Susan G. Komen
6. Law Enforcement Torch Run's Polar Plunge
Photo:Â Chicago Photo Press
7. Chicago Triathlon
Photo:Â Ali Engin
8. AIDS Walk & Run Chicago
Photo: Courtesy of Chicago AIDS Foundation
9. L.A.T.E. Ride
Photo:Â Courtesy of Friends of the Parks
10. Pets Are Worth Saving's Run for Their Lives
Photo:Â Courtesy of Animalprints
11. Race to Mackinac
Photo:Â Stephen Almeida