Laguna Seca: #55 Mazda Team Joest Mazda DPi, P: Jonathan Bomarito, Harry Tincknell, #15 3GT Racing Lexus RCF GT3, GTD: Jack Hawksworth, David Heinemeier Hansson, #44 Magnus Racing Audi R8 LMS GT3, GTD: John Potter, Andy Lally
#55 Mazda Team Joest Mazda DPi, P: Jonathan Bomarito, Harry Tincknell, #15 3GT Racing Lexus RCF GT3, GTD: Jack Hawksworth, David Heinemeier Hansson, #44 Magnus Racing Audi R8 LMS GT3, GTD: John Potter, Andy Lally