Northern Ireland's young Rory McIlroy tends to have a hot hand in the early rounds of the major men's pro golf tournaments, as I've graphed below (data source). However, he also sometimes goes erratic. He's done really well in his first two rounds of the U.S. Open, which is currently ongoing, achieving par or better on the first 35 holes he played, before double-bogeying the 36th (18th hole of Round 2). We'll see if he can retain his spectacular form on Saturday and Sunday to score his first victory in a major.