Nanjing 2014 - Gold Medalist Kokeb Tesfaye Alemu (C) of Ethiopia competes in the Women’s 1500m Final of athletics event at the Nanjing 2014 Youth Olympic Games in Nanjing, capital of Jiangsu Province, Aug. 25, 2014. 

Nanjing 2014 - Gold medalist Kokeb Tesfaye Alemu (C) of Ethiopia, silver medalist Winfred Mbithe (L) of Kenya, bronze medalist Dalila Gosa of Bahrain on the podium during the awarding ceremony of the Women’s 1500m of athletics event at the Nanjing 2014 Youth Olympic Games in Nanjing, capital of Jiangsu Province, Aug. 25, 2014. 

Nanjing 2014 - Gold Medalist Kokeb Tesfaye Alemu of Ethiopia celebrates after crossing the finish line in the Women’s 1500m Final of athletics event at the Nanjing 2014 Youth Olympic Games in Nanjing, capital of Jiangsu Province, Aug. 25, 2014.

Genzebe Dibaba of Ethiopia reacts after winning the silver medal in the Women's 1500m Final on Day 11 of the Rio 2016 Olympic Games at the Olympic Stadium on August 16, 2016 in Rio de Janeiro, Brazil.

Faith Chepngetich Kipyegon of Kenya celebrates winning the gold medal in the Women's 1500m Final on Day 11 of the Rio 2016 Olympic Games at the Olympic Stadium on August 16, 2016 in Rio de Janeiro, Brazil.

Faith Chepngetich Kipyegon of Kenya celebrates with the flag of Kenya after winning the gold medal in the Women's 1500m Final on Day 11 of the Rio 2016 Olympic Games at the Olympic Stadium on August 16, 2016 in Rio de Janeiro, Brazil.