After NBC chose not to renew its contract, TNT continued to retain its rights to air several NASCAR Cup Series races a year until 2014.

Also, TBS' coverage of Atlanta Braves baseball games, which were a staple of the channel lineup for years, often was aired on weekends afternoon or evening and would clash with NASCAR races.

TNT aired its first NASCAR Winston Cup Series race under the new contract at New Hampshire International Speedway in July 2001.

Both networks shared the broadcast team of Allen Bestwick, Benny Parsons, and Wally Dallenbach Jr. in the booth and Bill Weber, Marty Snider, Dave Burns, and Matt Yocum on pit road, as well as both being produced with Turner Sports' graphical look.

It was generally understood that anytime a major news story needed to be covered by NBC its NASCAR coverage would be switched over to TNT.

This occurred only once: the October 7, 2001 race at Lowe's Motor Speedway was interrupted during the prerace show when President George W. Bush announced the beginning of Operation Enduring Freedom in response to the September 11, 2001 attacks.

The pre-race coverage was changed in 2010 to a simple one-hour version of Countdown to Green due to NASCAR's new policy of earlier start times.

One of the most popular features of TNT's coverage is RaceBuddy, a free online application on NASCAR.com that allows fans to watch the race through their choice of several camera angles.

[2] During the broadcast of the 2008 LifeLock.com 400, Larry McReynolds performed a magic trick, "cutting" Marc Fein in half while green flag racing was taking place on the racetrack.

Because the crash occurred on the last lap, the field is frozen at the moment the caution came out and NASCAR reviews the finishing order by using video replays and scoring loop data.

There were some technical issues with TNT's final Sprint Cup race of the season at Chicagoland when the picture and sound went out during the prerace show, causing the invocation and the national anthem to not be televised.

Beginning with the Party at the Poconos 400 race on June 9, 2013, TNT's NASCAR coverage switched to a 16:9 aspect ratio letterbox format, though it did retain its on-air graphics package that has been in use since 2007.

Finally, the conclusive pre-race broadcast in fourteen years of NASCAR on TNT was closed out by former TBS lead announcer and New England native Ken Squier.

On November 29, 2023, TNT Sports announced that it had acquired the rights to five yearly summer NASCAR Cup Series races starting in 2025.

[4] NASCAR announced that they would hold a mid-season bracket challenge for Cup Series teams that would take place during TNT's five races.

The studio show, which is produced by NASCAR Productions, will air every Thursday and feature Shannon Spake, Steve Letarte, Dylan "Mamba" Smith and Jordan Bianchi.

Adam Alexander returns as the lead lap-by-lap commentator, with analysts Steve Letarte and Dale Earnhardt Jr.[8] 2001–2014 2025–2031 The rest of TNT's broadcasters for their new coverage starting in 2025 have yet to be determined.

TNT and NBC shared the broadcast team of Allen Bestwick on lap-by-lap and Benny Parsons and Wally Dallenbach Jr. on color commentary.

Also during the race, Fein and McReynolds contribute to the coverage from a large infield studio that revolves from a point several feet above ground level.

Ralph Sheheen and Lindsay Czarniak joined the team full-time for 2007, replacing Dave Burns and Allen Bestwick, who had jumped to ESPN.

During the race, he uttered an obscenity that was picked up by the network's microphones after he was involved in a crash on lap 1 with Matt Kenseth and Marc Goossens.

TNT later announced that Weber would not return for the Daytona or Chicagoland races, leading many to believe that he was fired by the network, and named Sheheen as his replacement.

Kyle Petty joined Czarniak and Larry McReynolds for the pre-race programs for the 2010 season, as Marc Fein was moved to TBS' Sunday major league baseball broadcasts.

[10]) On November 18, It was announced that former NASCAR on Fox broadcaster Adam Alexander and Steve Letarte would also join the TNT and prime booth.

A 3-D telecast was available in the United States on Comcast, Bright House Networks and Time Warner cable systems as well as NASCAR.com and DirecTV, marking a historic first in NASCAR racing.