In February 2013, he set a new junior world record in the 3000 m by winning the New Balance Indoor Grand Prix, beating Dejen Gebremeskel and Galen Rupp with a time of 7:32.87. In March 2013 he won the junior world cross country title in Bydgoszcz, Poland. At the 2013 World Championships in Athletics in Moscow, Gebriwhet won the silver medal in the 5000 m. He leaned at the finish line to beat Kenyan Isaiah Koech, and both were timed at 13:27.26. In March 2014, Gebrhiwet finished fifth in the 3000 m at the 2014 IAAF World Indoor Championships in a time of 7:56.34.