In 2008, she set a national indoor record over 1500 m of 4:07.46 minutes at the BW-Bank Meeting in February. She finished fourth at the World Indoor Championships in a new Kenyan indoor record of 8:41.82 minutes. She won her first major outdoor medal at the 2009 World Championships in Athletics, taking the silver medal in the 5000 metres behind Vivian Cheruiyot.