Today, American Olympic Marathon medalist Meb Keflezighi puts in 15 to 20 percent of his miles at his "comfortably hard" pace, according to his coach, Bob Larsen.

根据教练Bob Larsen，对于美国奥林匹克马拉松奖牌获得者Meb Keflezighi而言，现在，“舒适地费力”配速占周里程15-20%。

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Sony also congratulates Meb Keflezighi, an American distance running hero, on taking 4th in the Olympic Marathon and securing a place among the most accomplished marathoners in history.

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"Your decision on First Avenue can make or break your race, " said Meb Keflezighi, the 2009 New York City Marathon champion who finished fourth this year at the London Olympic marathon.

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His long-range goal, he said, is to contend for an Olympic berth in 2016, so he's looking forward to learning from and competing against the likes of Meb Keflezighi and Ryan Hall.

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