Ian Jamaes passed George Kurtz for the lead and held off Drew Stavely to win the second GTS race at the Utah Motorsports Campus.
Rodrigo Baptista started from pole and survived two cautions to earn his third victory of 2017 in GTS competition.
Peter Kox and Mark Wilkins delivered the first Pirelli World Challenge victory for the Acura NSX GT3 in Utah.
Pipo Derani took the No. 22 Nissan Onroak DPi to the overall victory at Road America, ending Cadillac's perfection in 2017.
Joey Hand survived four cautions to put the No. 66 Ford GT back onto the top step of the GTLM podium at Road America.
With the addition of Mid-Ohio and removal of Circuit of The Americas, the 2018 WeatherTech Championship schedules features 12 distinct venues and events.
Track facts, entrant facts, the weather forecast, session results and more for the 2017 Continental Tire Road Race Showcase.
Alvaro Parente beat Patrick Long by more nearly seven seconds in Race 2 at Mid-Ohio to sweep the weekend in his K-PAX Racing McLaren.
Ian James passed pole sitter Lawson Aschenbach to take the lead and the victory in Race 2 at Mid-Ohio.
Alvaro Parent stormed to victory after starting from pole in the first of two GT races at Mid-Ohio.