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Boston Marathon: America’s Most Grueling Race? (Photos)
The Daily Beast crunches the finishing times of 16 courses to find the ultimate running challenge.
16. Boston Marathon
Mary Schwalm / AP Photo
15. Houston Marathon
Brett Coomer / AP Photo
14. Chicago Marathon
Tasos Katopodis / Getty Images
13. New York City Marathon
Timothy A. Clary, AFP / Getty Images
12. California International Marathon
Anthony Ramos / Flickr
11. Twin Cities Marathon
Andy King / AP Photo
10. Rock ‘n’ Roll Marathon
Denis Poroy / AP Photo
9. Los Angeles Marathon
Steve Grayson / Getty Images
8. Philadelphia Marathon
Joseph Kaczmarek / AP Photo
7. Grandma’s Marathon
Kathy Strauss, Duluth News-Tribune / AP Photo
6. St. George Marathon
Ken Lund / Flickr
5. Honolulu Marathon
Hugh Gentry / Reuters
4. Marine Corps Marathon
Brendan Smialowski / Getty Images
3. San Francisco Marathon
Ben Margot / AP Photo
2. Disney World Marathon
Matt Stroshane / Disney via Getty Images
