ATLANTA: FedEx Cup playoff points leaders Billy Horschel and Chris Kirk both shot bogey-free four-under 66s to share the lead after the first round of the Tour Championship on Thursday (Friday in Manila). Masters champion Bubba Watson, who is number three in the standings, is tied for third at three-under 67. He is joined there by Australia’s Jason Day, Patrick Reed and Jim Furyk. Cameron Tringale, Zach Johnson, Bill Haas and Matt Kuchar are tied for seventh at two-under 68. World number one Rory McIlroy is three shots adrift of the leaders at one under with Ryan Palmer, Sergio Garcia, Adam Scott and Rickie Fowler.