WASHINGTON: Dustin Johnson edged closer to the USPGA Tour’s $10 million FedEx Cup playoff prize Friday (Saturday in Manila), firing a three-under par 67 to seize a one-stroke lead in the season-ending Tour Championship in Atlanta, Georgia. US Open champion Johnson, who arrived at East Lake Golf Club atop the playoff standings after his win at the BMW Championship two weeks ago, fired five birdies with two bogeys for a seven-under total of 133. He was one shot in front of fellow American Kevin Chappell, who started the day in a three-way tie for the lead with Johnson and Hideki Matsuyama and signed for a second-round 68 for 134. It was three shots back to Matsuyama, who shot a one-over par 71, and Kevin Kisner (70) on 137. World No.1 Jason Day’s season ended in disappointing fashion as the Australian walked off before completing the eighth hole with back pain. It’s the same injury that forced Day out of the final round of the BMW Championship.