Olympia Fields is so tough it won't allow anything but his full attention on every shot. By the end of another steamy afternoon south of Chicago, they were the sole survivors to par. One week after McIlroy admitted to going through the motions without spectators around to provide the cheers, he had a 1-under 69 to share the 36-hole lead with Cantlay. He also missed the green on three of the par 3s, the last one leading to a double bogey. For non-majors, the tour said over par hasn't won since Bruce Lietzke at the Byron Nelson Classic in 1981.