DETROIT — Luka Doncic became the first NBA player to record six consecutive 30-point triple-doubles as the Dallas Mavericks pulled away in the second half and beat the Detroit Pistons 142-124 on Saturday night. Doncic finished with 39 points, 10 assists and 10 rebounds, eclipsing Russell Westbrook’s mark of five straight 30-point triple-doubles. He also
