(AP Photo/Eric Gay)
AUSTIN, Texas (AP) Rory McIlroy put together another flawless back nine, running off five straight birdies.
This time, it wasn't enough.
Former U.S. Amateur champion Peter Uihlein built a 5-up lead against McIlroy and held off his late charge with enough key shots of his own in a 2-and-1 victory, one of several surprises Wednesday in the opening session of the Dell Technologies Match Play.