Shane Lowry knows he’s playing good golf. He also knows he has a horrible record at Bay Hill. Good golf mattered more in the Arnold Palmer Invitational. Lowry opened with a 66 on Thursday and has a one-shot lead. That not only is his best score at Bay Hill, he had never broken 70 the previous five times he played. Lowry had a share of the 54-hole lead last week, so he knows his form is good. He leads by one shot over Hideki Matsuyama and Justin Lower. Jordan Spieth had another wild day of bogeys and birdies and shot 69.