She broke the Ethiopian record at the 2012 Rotterdam Marathon, completing a solo run of 2:18:58 hours to win the race almost five minutes ahead of runner-up Valeria Straneo.[18] This made her the fourth fastest woman ever over the distance.[19] She was selected to represent Ethiopia in the Olympic marathon as a result. At the London 2012 Olympics she won the gold medal at the marathon with an Olympic record time of 2:23:07 hours, in spite of rain throughout the race and a fall at the water station.[20] After the Olympics she ran a personal best for the half marathon, recording 1:07:48 for third at the Great North Run,[21] then ran a 15 km best of 48:09 minutes at the Zevenheuvelenloop (finishing behind Olympic 10,000 m champion Tirunesh Dibaba at both races).[22] She was chosen at the AIMS World Athlete of the Year Award for her performances that year.[23]