Season Description The 2025 NASCAR Cup Series was the 77th season of NASCAR professional stock car racing in the United States and the 54th season of the modern-era Cup Series. Joey Logano of Team Penske entered the season as the defending 2024 NASCAR Cup Series champion. The season started with the Cook Out Clash at Bowman Gray Stadium on February 2, and concluded at Phoenix Raceway on November 2, where Kyle Larson won the championship after finishing third at the NASCAR Cup Series Championship Race.
The 2025 season was the first year under NASCAR's new TV deal that will last until 2031. This was also the first year since 2008 that Stewart–Haas Racing (now Haas Factory Team) did not have the ownership of Tony Stewart. Katherine Legge made her Cup Series debut as well. NASCAR held its first race outside the United States in 67 years with the 2025 Viva México 250.