 Only needing a victory to clinch the championship, Spieth won the 2015 Tour Championship at East Lake Golf Club by four strokes.With the win, his fifth of the year, Spieth became the ninth FedEx Cup champion and earned a $10 million bonus for winning the Cup.Spieth won $12,030,485 (not including the $10 million bonus) in 2015, a PGA Tour record for a single year.