In 2025, NASCAR sanctioned three national series, four regional series, four international series, and three esports series:
National Series
2025 NASCAR Cup Series 2025 NASCAR Xfinity Series 2025 NASCAR Craftsman Truck Series
Regional Series
2025 ARCA Menards Series 2025 ARCA Menards Series East 2025 ARCA Menards Series West 2025 NASCAR Whelen Modified Tour
International Series
2025 NASCAR Canada Series 2025 NASCAR Mexico Series 2025 NASCAR Euro Series 2025 NASCAR Brasil Series
Esports Series
2025 eNASCAR Coca-Cola iRacing Series 2025 eNASCAR College iRacing Series 2025 D-BOX eNASCAR International iRacing Series