Watkins Glen: #67 Ford Chip Ganassi Racing Ford GT, GTLM: Ryan Briscoe, Richard Westbrook, #25 BMW Team RLL BMW M8 GTE, GTLM: Tom Blomqvist, Connor De Phillippi, #912 Porsche GT Team Porsche 911 RSR, GTLM: Earl Bamber, Laurens Vanthoor, #3 Corvette Racing Corvette C7.R, GTLM: Jan Magnussen, Antonio Garcia
#67 Ford Chip Ganassi Racing Ford GT, GTLM: Ryan Briscoe, Richard Westbrook, #25 BMW Team RLL BMW M8 GTE, GTLM: Tom Blomqvist, Connor De Phillippi, #912 Porsche GT Team Porsche 911 RSR, GTLM: Earl Bamber, Laurens Vanthoor, #3 Corvette Racing Corvette C7.R, GTLM: Jan Magnussen, Antonio Garcia