Joseph Wolkin is a reporter who covers Nascar, Formula 1 and IndyCar. Leigh Diffey an Australian-American auto racing commentator on air for NBC Sports prior to the ... [+] running of the NTT ...

The first street race in NASCAR Cup Series history delivered the biggest rating for NBC in six years. The Grant Park 220 on the streets of Chicago was an epic event, with a shock winner in New ...

A change is coming in the NASCAR on NBC booth this summer with Leigh Diffey replacing lead Cup Series announcer Rick Allen ...

NBC and USA Network as race broadcasters. Five races will be streamed exclusively on Prime, including NASCAR's longest race, the Coca-Cola 600, on May 25.