Leigh Diffey (born 3 March 1971) is an Australian-American auto racing and track and field commentator. He is best known for being the lead play-by-play announcer for much of NBC Sports ' motorsports coverage, currently calling NASCAR Cup Series and IMSA sports car races for the network.

Aug 24, 2024 · NBC's NASCAR Cup Series broadcasts have a new lead announcer in Leigh Diffey. Born in Brisbane, Australia, Diffey has become one of the premier auto racing announcers in the United States...

Aug 24, 2024 · Leigh Diffey, formerly of IndyCar and Olympic fame, will be manning the broadcast booth for Sunday's Cup Series race at Daytona, the Coke Zero Sugar 400. Diffey is taking...

Jan 14, 2025 · Leigh Diffey made an entrance into NASCAR last season, taking up commentary duties for the final 14 races, and quickly garnered widespread appreciation from fans, drivers, and others involved in the sport.

Leigh Diffey is one of the most prolific voices in motorsports, serving as NBC Sports’ lead play-by-play commentator for its NASCAR Cup Series, IMSA WeatherTech Sportscar Championship, and Supercross coverage.

STAMFORD, Conn. – August 20, 2024 – NBC Sports has announced that veteran motorsports commentator Leigh Diffey will serve as the lead play-by-play voice for its NASCAR Cup Series coverage, beginning with this weekend’s Coke Zero Sugar 400 at Daytona International Speedway on Saturday, August 24, in primetime on NBC and Peacock, and ...

Jan 3, 2025 · Leigh Diffey, a voice synonymous with motorsports excellence, has embarked on a new journey as the full-time NASCAR Cup Series play-by-play announcer for NBC. Known for his dynamic commentary and passion, Diffey’s transition from IndyCar to NASCAR marks a significant milestone not only for him but also for the broader motorsports landscape.

Aug 20, 2024 · Leigh Diffey has been named as the lead play-by-play announcer for coverage of the NASCAR Cup Series from NBC Sports, starting this weekend from Daytona International Speedway for the Coke Zero Sugar 400.

Aug 31, 2024 · With IndyCar's move to Fox Sports in 2025, Diffey moves to the NASCAR booth for a new challenge. Diffey has cut his teeth at the highest level of motorsports and, in his 25-year career, has...

Oct 18, 2024 · In just one calendar year, Leigh Diffey has covered IMSA’s Rolex 24 at Daytona, the Indianapolis 500, the Summer Olympics in Paris and his current assignment for NBC Sports as the...