IndyCar Ratings Index All-Time
Who's the best NTT IndyCar Series driver of all time? Explore and compare season results, drivers, and predictive metrics to prove your case for the greatest driver.
Twin Checkers has created a rating system to compare every individual IndyCar season ever contested. We've also developed a predictive formula to estimate how many championship points a driver with similar finishing rates would earn per race and per season*.
The All-Time ratings will update working backwards through time. Currently, the All-Time ratings are updated through: 2013.
*This formula was created during the double points era, and might not be reflective of results from 2023-24 as a result. The curve will be adjusted following the 2024 season.
Glossary:
IRI: IndyCar Ratings Index
EPPR: Expected Points Per Race
PPR: Points Per Race
IRI Calculation:
(Top 5% X 50%) X (Top 10% X 25%) X (Top 20% X 16.6%) X (Finish Rate X 8.3%)
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