Following Daytona and Sebring, the IMSA WeatherTech SportsCar Championship is at Road America this weekend. Ricky Taylor's Acura DPi / Penske was the fastest in the first free practice session in Wisconsin. With a best time of 1.50.654, teammate Helio Castroneves edged out Cameron / Montoya's second Acura by 0.275s.
Two Cadillac DPi-V.Rs follow in the standings with Wayne Taylor Racing and Whelen Engineering Racing respectively. Both Mazda DPis also finished in the same second as the top Acura, as did the Cadillac / Mustang Sampling Racing.
ORECA 07 / PR1 Mathiasen Motorsports of Trummer / Kelly dominated in LMP2.
The Porsche 911 RSRs made a splash in GTLM with the two fastest times, Tandy / Makowiecki ahead of Bamber / Vanthoor. The competition is relegated beyond the second.
In GTD, the BMW M6 GT3 / Turner Motorsport of Foley / Auberlen took the advantage over the Porsche 911 GT3-R / Wright Motorsports of Hardwick / Long. Riley Motorsports (Mercedes), Compass Racing (McLaren), AIM Vasser Sullivan (Lexus) and Meyer Shank Racing (Acura) follow in the standings.
The times are here