Series
Historic Sportscar Racing
North America’s premier vintage and historic racing series — seven major weekends a year at Daytona, Sebring, Road Atlanta and Watkins Glen.
About HSR
Historic Sportscar Racing (HSR) is North America’s premier vintage and historic racing series. Founded in 1977 with the Walter Mitty Challenge at Road Atlanta and now operating under IMSA, it stages seven major events a year at Daytona, Sebring, Michelin Raceway Road Atlanta and Watkins Glen, headlined by the Classic 24 Hour at Daytona and Classic 12 Hour at Sebring. HSR also sanctions the IMSA Classic at the Rolex 24, the Rolex Monterey Motorsports Reunion and the Porsche Rennsport Reunion.
Series calendar
| Track | Dates |
|---|---|
| Daytona International Speedway | Jan 21 – 252026 |
| Sebring International Raceway | Feb 12 – 152026 |
| Michelin Raceway Road Atlanta | Apr 23 – 262026 |
| Watkins Glen International | Jun 11 – 142026 |
| Michelin Raceway Road Atlanta | Sep 17 – 202026 |
| Daytona International Speedway | Nov 11 – 152026 |
| Sebring International Raceway | Dec 2 – 62026 |