Kyle Marcelli led a Porsche Cayman GT4 Clubsport MR 1-2 in opening practice for this weekend’s Pirelli World Challenge GTS SprintX round at Lime Rock Park.
The Canadian recorded a best lap of 55.043 seconds in his No. 13 Pfaff Motorsports Porsche GT4 to go quickest in the session, edging out the No. 21 Muehlner Motorsports entry or Moritz Kranz by just 0.008 seconds.
Marcelli is sharing driving duties with Orey Fidani in the Canadian-entered Porsche.
The pair of GMG Racing Audi R8 LMS GT4 cars were third and fourth quickest overall, led by the No. 04 Crowdstrike-backed entry of Colin Braun, while the No. 34 Murillo Racing Mercedes-AMG GT4 made it three different manufacturers in the top five.
The session saw a red flag early for the No. 69 Racers Edge Motorsports SIN R1 GT4 of Harry Gottsacker.
Practice 2 for GTS is set for 9:50 a.m. EDT on Saturday, followed by qualifying in the afternoon.
RESULTS: Practice 1