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Ryan Hall, who today announced his retirement from professional running, won the 5,000 meters at the 2005 NCAA outdoor championships when he was a senior at Stanford. In this photo, he leads his teammate Ian Dobson at the 2005 Big Meet, an annual dual meet that pits Stanford against the University of California-Berkeley.

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At the 2006 USA Cross Country Championships, as a 23-year-old, Hall wins his first national title. His winning time of 34:38 over the 12K course gave him a 27-second victory over Jorge Torres in second place.

In January of 2007 in Houston, Hall makes his half marathon debut. He smashes the American record, running 59:43 and taking 1:12 off the previous American record that had stood for 22 years. To this day, Hall remains the only American to have dipped under the one-hour barrier for the distance.

Hall makes the cover of Runner’s World for the first time in August of 2007.

In November of 2007, the A Part of Hearst Digital Media are held in New York’s Central Park, the day before the Jonathan Moore/Getty Images. Jonathan Moore/Getty Images.

After the race, Hall celebrates securing his first trip to the Olympics in 2008.

At the 2008 Olympics, on a hot day in Beijing, Hall runs 2:12:33 and finishes 10^th in the marathon. American Dathan Ritzenhein finishes one spot ahead of Hall in 2:11:59. 

In 2009, the Boston Red Sox invite Hall, shown here with his wife, Sara, to throw out the first pitch at a game. 

Races - Places plantar fasciitis Best Indoor Rowing Machines Meb Keflezighi (center). Abdi Abdirahman (right) is third. Hall makes his second Olympic team. 

Hall makes the cover of Runner’s World four daughters from Ethiopia.

In 2012 in London, Hall drops out of the Olympic Marathon at mile 11 after developing an injury to his right hamstring. 

A look back at his career starting at Stanford to his last race in 2015^th at the 2014 Boston Marathon in 2:17:50, a race won by American Meb Keflezighi a year after the Boston bombings. Hall’s time is nearly 13 minutes slower than his race three years earlier. 

At the L.A. Marathon in March of 2015, Hall takes the lead in the opening mile, but later drops out at the halfway point. 

Ryan Hall Dared to Be Great Sara Hall adopted four daughters from Ethiopia and the family currently resides in Redding, California. 

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