The race took off at a leisurely pace, with Muir taking the pack through a 1:15.31 first lap, marked by 5000 world championHellen Obiri. Hassan and Dibaba chose to lead from behind, taking the back of the pack. The next 400 was even slower, 1:20.45. With that, Konstanze Klosterhalfen tired of the slow pace and took the lead. With the injection of pace, Dibaba decided to move forward on the next straightaway to mid pack, then with a big acceleration on the next straightaway. As Dibaba passed, her teammate Fantu Worku popped out of the pack to tag along, both reaching a gap at the front behind Klosterhalfen. The third lap split was 1:12.23, but with the exchange in the lead it was considerably faster for Dibaba in particular. Obiri and Bahta wanted to tag along with Dibaba, pushing forward to her shoulder, while at the back Hassan moved up a few places as the field strung out. The next 400 was accomplished in 1:09.67. Just before 2000 meters, passed in 6:07.62 (a 1:08.96 split) Dibaba accelerated into the lead. That triggered Hassan to move forward. Klosterhalfen, Muir, Bahta and Worku attempted to hold on, but the only one to stay with Dibaba was Obiri at first. As Hassan accelerated past, Klosterhalfen and Muir followed her to bridge the gap. Dibaba ran the next 400 in 1:07.56. The pace was too much for Obiri as she broke, going backward through the field as Hassan and Muir chased a new gap by Dibaba. The gap widened as Dibaba laid down a 1:02.43 split. Through the final lap, Hassan gained slightly on Dibaba, but could't make enough progress. Dibaba coasted across the finish line with the win. Behind her Hassan let off the gas, while Muir launched a final kick, almost catching Hassan at the line.[3]
