By Mario Fraioli, Published Jun. 7, 2010, Updated Jun. 7, 2010 at 9:56 PM UTC
The Entertainment Tonight host was on hand to kick off Sunday’s Rock ‘n’ Roll San Diego Marathon and 1/2 Marathon. Check out the video!
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Mario Fraioli is a senior editor at Competitor magazine. A cross-country All-American at Stonehill College, he coaches both elite and age-group runners and was the men's marathon coach for Costa Rica at the 2012 Olympics. His first book, The Official Rock 'n' Roll Guide To Marathon & Half-Marathon Training (VeloPress, 2013) is available in bookstores, running shops and online.
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