William Byron gets first career XFINITY win at Iowa Speedway
June 24, 2017 By Rob Gray NASCAR Wire Service NEWTON, Iowa — Last week, a blink-of-an-eye moment weighed heavily on William Byron. Saturday, the driver of the No. 9 JR Motorsports Chevrolet lifted his head and shouted out a pent-up yelp that formed the suitable soundtrack the rookie’s first career NASCAR XFINITY Series victory. “I feel it all kind of comes around in racing and last week we were so close,” said Byron, who finished a mere .012 seconds behind Joe Gibbs Racing veteran Denny Hamlin last Saturday at Michigan International Speedway. “You’ve got to have a little bit off luck to…