Day's hot streak continued with wins in The Barclays and the BMW Championship, two of the first three events in the FedEx Cup playoffs. As a result of the BMW Championship win, on 20 September 2015, Day gained the world number 1 ranking for the first time. Day entered the Tour Championship as the FedEx Cup leader, but he finished tied for tenth. Jordan Spieth would win the Tour Championship and the FedEx Cup as well as retaking the number one world ranking.