45 minutes to go:

Prototype—now #22 Nissan (Pipo Derani), #55 Mazda, #31 Cadillac (six cars on the lead lap)

GTLM—still #911 Porsche (now 10th overall), #67 Ford, #25 BMW (the #4 Corvette is still 6th in class and the #3 Corvette is still 9th in class)

GTD—still #48 Lamborghini (now 17th overall), #33 Mercedes, #29 Audi

38 of the original 43 cars are still running.