In pics: Women's 800m steeplechase heat

Kenya's Hyvin Kiyeng Jepkemoi, center, and Romania's Ancuta Bobocel, right, compete in the women's 3000-meter steeplechase during the athletics competitions of the Summer Olympics in Rio de Janeiro, Brazil, Saturday, Aug. 13, 2016. | AP 

United States' Courtney Frerichs, right, leads Kenya's Hyvin Jepkemoi in a women's 400-meter heat during the athletics competitions of the 2016 Summer Olympics at the Olympic stadium in Rio de Janeiro, Brazil, Saturday, Aug. 13, 2016. | AP

Ethiopia's Etenesh Diro is helped on the track after a women's 3000-meter steeplechase heat during the athletics competitions of the 2016 Summer Olympics at the Olympic stadium in Rio de Janeiro, Brazil, Saturday, Aug. 13, 2016. | AP

Japan's Anju Takamizawa leads a women's 3000-meter steeplechase heat during the athletics competitions of the 2016 Summer Olympics at the Olympic stadium in Rio de Janeiro, Brazil, Saturday, Aug. 13, 2016. | AP

Tunisia's Habiba Ghribi, right, and United States' Emma Coburn compete in a women's 3000-meter steeplechase heat during the athletics competitions of the 2016 Summer Olympics at the Olympic stadium in Rio de Janeiro, Brazil, Saturday, Aug. 13, 2016. |

United States' Emma Coburn competes in the women's 3000-meter steeplechase during the athletics competitions of the Summer Olympics in Rio de Janeiro, Brazil, Saturday, Aug. 13, 2016. | AP

Runners compete in a 3000 meter steeplechase heat during the athletics competitions of the 2016 Summer Olympics at the Olympic stadium in Rio de Janeiro, Brazil, Saturday, Aug. 13, 2016. | AP