LONDON (AP) -- Defending Olympic champion Dawn Harper, American teammate Lolo Jones and world champion Sally Pearson advanced to the semifinals of the women's 100-meter hurdles on Monday.
Harper, Jones and Pearson won their respective heats. Pearson had the fastest time in the seven heats, covering the distance in 12.57 seconds -- the fastest first-round time in Olympic history.
Jessica Ennis -- who won gold in the grueling, two-day heptathlon -- pulled out of the hurdles Sunday.
Jamaica's Brigitte Foster-Hylton failed to advance. She hit the fifth hurdle in her heat, veered toward an inside lane, got off stride and never recovered. She threw herself to the ground after the finish line, slapped the track surface, screamed loudly and then brushed aside Jones' attempt to console her.