At the end of the third hour, the Verstappen Mercedes-AMG GT3 No. 3 was leading, having been driven to P1 by the four-time world champion Max Verstappen himself during a double stint. But he's having to fighting for it.

Perennial Porsche GT3 challenger Manthey has announced it will enter the five-race IMSA Michelin Endurance Cup for the first time, fielding two Porsche 911 GT3 Rs.Manthey will enter its famous ‘Grello’ Porsche, the No. 911, in the GTD PRO category, while the No. 912 Porsche will compete in GTD, with...