KANSAS CITY, Kan. — Martin Truex Jr. finally ended his string of rotten luck at Kansas Speedway, pulling away from Ryan Blaney and Kevin Harvick on a late restart Saturday night to win the NASCAR Cup Series race. Truex dominated the same event a year ago before a fluke problem during a tire change forced him to make an unscheduled pit stop and cost him the race. He’s had plenty of other close calls at Kansas, always leading laps but never finding his way to victory lane.