Runners to watch in the Boston Marathon
Ryan HallNumber: 3
Personal Best: London, 2008 2:06:17
Boston Marathon: Fourth in 2010 (2:08:41); Third in 2009 (2:09:40).
Of Note: A three-time All-American cross-country runner at Stanford, Hall has is one of the best domestic distance runners of all time, boasting the second-fastest marathon time by an American (2:06:17). Hall is also the American record-holder in the half marathon, 59:43. Hall likes to come out fast and set the pace, as he famously did in 2009.