General view of the start of the Women's Half Marathon during the IAAF/Cardiff University World Half Marathon Championships on March 26, 2016 in...
General view of the start of the Men's Half Marathon during the IAAF/Cardiff University World Half Marathon Championships on March 26, 2016 in...
General view of the start of the Men's Half Marathon during the IAAF/Cardiff University World Half Marathon Championships on March 26, 2016 in...
Runners make their way on Water Street to the finish line at the 2015 United Airlines New York City Half Marathon in lower Manhattan on March. 15,...
Participants run along 6th Avenue near Balboa Park in the 15th annual Rock 'n' Roll Marathon on June 3, 2012 in San Diego, California.
General view of the start of the Men's Half Marathon during the IAAF/Cardiff University World Half Marathon Championships on March 26, 2016 in...
Runners are seen crossing the finishing line during The Vitality Big Half, which has returned for a festival of running and culture to the heart of...
General view of the start of the Women's Half Marathon during the IAAF/Cardiff University World Half Marathon Championships on March 26, 2016 in...
Katie Kellner of the United States runs the 2015 United Airlines New York City Half Marathon in lower Manhattan on March. 15, 2015 in New York City.
Runners taking part in the 14th Annual SHAPE Women's Half Marathon at Central Park on April 30, 2017 in New York City.
Runners participate in the United Airlines Rock 'N' Roll Marathon and Half Marathon on March 9, 2019 in Washington, DC.
Geoffrey Kipsang Kamworor of Kenya celebrates winning the Men's Half Marathon during the IAAF/Al-Bank World Half Marathon Championships on March 29,...
General view of the runners and fans during the half marathon of Bogota 2018, mmB. With its 21Km in this edition the winner was Betesfa Getahun of...
Competitors run across the Sydney Harbour Bridge in the Sydney half-marathon during the Blackmores Sydney Running Festival on September 20, 2015 in...
Runners make their way on water Street to the finish line at the 2015 United Airlines New York City Half Marathon in lower Manhattan on March. 15,...
Leonard Korir of Kenya edges out fellow countryman, Stephen Sambu at the finish line to win the Men's 2015 United Airlines New York City Half...
Runners participate in the United Airlines Rock 'N' Roll Marathon and Half Marathon on March 9, 2019 in Washington, DC.