Only Indianapolis Motor Speedway and Pocono Raceway – both privately owned – do not release such information. The Indianapolis Star has reported the seating capacity at Indianapolis Motor Speedway as 235,000. Among tracks that report seating capacity, Daytona International Speedway remains the largest at 147,000 – but that won't last much longer.
Once the Daytona Rising project is completed, Daytona will have about 101,000 seats. That project is set to be completed in time for next year's Daytona 500. Six of the top 10 tracks that report seating capacities are owned by Speedway Motorsports Inc., including Bristol Motor Speedway, which is set to take over the No. 1 spot next year with its seating capacity of 146,000. More at NBC Sports