Details regarding the Circuit of the Americas’ doubleheader FIA World Endurance Championship and TUDOR United SportsCar Championship weekend, September 19-20, have been finalized.

Both the TUDOR Championship and FIA WEC races will occur on the same day, Saturday, Sept. 20 as part of “Lone Star Le Mans” – the new event name.

The TUDOR Championship race will be the standard two-hour, 45-minute affair and commence at 12:05 p.m. on Saturday, ending at 2:50 p.m.

A concert will fill in the interim time at the Austin 360 Ampitheater from 3 to 4:30, with the six-hour FIA WEC race beginning at 5 p.m. and running into the night, until 11.

“The Lone Star Le Mans, featuring the FIA WEC’s 6 Hours of Circuit of the Americas, will be the first of five races outside of Europe, and the partnership with TUDOR United SportsCar Championship will provide the fans with a full day of family entertainment, including a tribute to the sports car,” said FIA WEC CEO Gerard Neveu.

“The new name of the event reflects the European-American style of the event—the Spirit of Le Mans in Texas. We are looking forward to a great event this September.”

Added IMSA President/COO Scott Atherton, “In a very short period of time, Circuit of The Americas has become one of the most prestigious venues in the TUDOR Championship and a favorite of our drivers, teams, manufacturers and fans.

“If you’re a fan of sports car racing, the Lone Star Le Mans weekend is a must. Nowhere else in the world can you see the best and most competitive sports car racing in North America and the world’s best sports car technology sharing the same stage on the same day.”

Tickets go on sale starting today. The full weekend schedule, which also features the Continental Tire SportsCar Challenge (race 12:20-2:50 p.m. on Friday) and the Porsche GT3 Cup Challenge USA by Yokohama (races Friday at 8 a.m. and Saturday at 10 a.m.) can be found here.