Rory McIlroy got off to his worst start in two months Thursday with a 3-over 74 in The Barclays.
Coming off three straight victories - two of them major championships - McIlroy took a double bogey on his third hole and never got on track at Ridgewood Country Club as the FedEx Cup playoff began.
He didn't make a birdie until his 14th hole, and McIlroy ended with a 30-foot birdie on his last hole.
Hunter Mahan, the only player to have competed in all 29 playoff events, joined Charles Howell III and Cameron Tringale for the lead at 5-under 66 among the early starters.
It was the first time since the Irish Open that McIlroy failed to break par in the opening round.