FORT WORTH, Texas (AP) — William Byron got a milestone victory for Rick Hendrick while advancing into the round of eight of NASCAR playoffs. Bubba Wallace felt like he let one get away. Byron took the lead for the first time right after the final restart with six laps left Sunday at Texas, staying in front after going underneath Wallace and Chase Briscoe, to win the opener of the second round of the playoffs and get the 300th victory for Hendrick Motorsports. “I choked ... I had my worst restart,” said Wallace, who after just sneaking into the round of 12 started from the pole and led a career-high 111 laps. “This one is going to sting for a little bit.”The top five finishers were all playoff contenders, with Ross Chastain second, ahead of Wallace, Christopher Bell and Denny Hamlin. Retiring driver Kevin Harvick was sixth and playoff driver Brad Keselowski seventh. “We’ve just been kind of steady Eddie through the first three or four races and we haven’t shown any flashes, but today I...