Officials from Historic Sportscar Racing (HSR) and the International Motor Sports Association (IMSA) have confirmed plans for a new, six-event series for current and previous-generation Le Mans Prototype 3 (LMP3) race cars beginning in 2024.

The series will be known as the HSR Prototype Challenge presented by IMSA.

Events will be operated by HSR with oversight from IMSA, the license rights-holder for LMP3 racing in the United States and Canada.

"LMP3 continues to be a valuable IMSA platform for a variety of reasons," said IMSA President John Doonan. "It provides an entry-level opportunity to prototype racing for drivers, teams and crew members and can be a catalyst for a career in endurance sports car racing. As part of the IMSA VP Racing SportsCar Challenge, which utilizes current-generation LMP3 machines, competitors are able to hone their racecraft in single-driver, 45-minute sprint races."

The six-event calendar opens with a two-hour race on the weekend of March 8-10 at Sebring International Raceway (Sebring, Florida) as part of the HSR Spring Fling event, followed by a two-hour event at Michelin Raceway Road Atlanta (Braselton, Georgia) as part of The Mitty event weekend on April 25-28. The series will conclude at Sebring a three-hour event as part of the Classic 12 Hour, December 4-8.

All cars in the HSR Prototype Challenge presented by IMSA will ride on Michelin tires and use VP Racing Fuels. Ligier and Duqueine plan to have representatives onsite for technical support at each event.

Each race will feature a timed pit stop. Teams will have the option of one- or two-driver lineups with no minimum drive times.

For more information, visit the IMSA announcement or imsa.com.