1908: John Joseph Hayes wins the Olympic marathon, the first American to do so
1964: Billy Mills shocks the world at the Tokyo Olympics, winning the 10,000-meter run by three meters
1972: Frank Shorter wins the Olympic marathon, the last American to do so
1975: Steve "Pre" Prefontaine, who had set American records in every event between 2,000 and 10,000 meters, dies in a car crash
197580: Bill Rodgers wins the Boston and New York marathons four times each, takes 40th at the '76 Games
198082: Alberto Salazar wins three consecutive New York City Marathons, plus Boston, in 1982
1983: Greg Meyer wins the Boston Marathon, which no American has done since
2009: After finishing third in the Boston Marathon, Ryan Hall has his sights set on New York (November 1). "I'm going to be relentless until I get one of these U.S. marathons," he says.