GMG Racing ProAm combination Jason Bell and Alec Udell took the #2 Audi R8 LMS GT4 to the top spot in practice early in the day with a 2:17.371 in the newly renamed Pirelli GT4 America series. The new series features double-header race weekends in the 60-minute SprintX format that open at Circuit of the Americas this weekend.

The Flying Lizard Motorsports pair Michael Dinan and Robby Foley drove the team’s #21 Porsche 718 Cayman to the second-fastest practice spot, also attained in the cooler temps of the first practice session. The Lizards stopped the fast lap clock at 2:17.615.

GT4 East team Park Place Motorsports put the inaugural SprintX-style class on the map with the third overall fast lap in practice. The duo of Alan Brynjolfsson and Trent Hindman took their Porsche 718 Cayman through the lights with a lap time of 2:17.715.

Pirelli GT4 competitors next take to the track for Qualifying sessions at the Circuit of the Americas on Saturday.