After three consecutive SprintX rounds, Pirelli World Challenge returns to its traditional Sprint format for this weekend’s double-header at Road America.

More than 60 cars will be in action across the GT/GTA/GT Cup Sprint races, as well as the GTS division, which will be joined by a ten-car TC “invitational” class in combined races at the historic four-mile 14-turn circuit.

ENTRY LIST: Road America

A total of 15 cars are set to do battle for overall honors in GT, led by K-PAX Racing’s Alvaro Parente and Patrick Long of Wright Motorsports, who are separated by just a single point in the GT Sprint championship.

While GAINSCO/Bob Stallings Racing is back with Jon Fogarty after skipping the SprintX rounds, the No. 61 R. Ferri Motorsport Ferrari 488 GT3 is not listed, following Alex Riberas’ weekend-ending accident at Canadian Tire Motorsport Park last month.

The status of the Spaniard with the Remo Ferri-owned team is unknown.

Alexandre Negrao is set for his second start of the season in the No. 92 MCC Motorsports Mercedes-AMG GT3, while Dream Racing is expected to make its GT series debut with Cedric Sbirrazzuoli at the wheel of the team’s Lamborghini Huracan GT3.

The GTA field, meanwhile, has been boosted by the addition of Preston Calvert with his Porsche 911 GT3 R, as well as Marc Muzzo in a R. Ferri-entered Ferrari 458 Italia GT3, which ran at the SprintX round at Virginia International Raceway.

Mike McCann is set for his second start of the year in the No. 82 McCann Racing Audi R8 LMS, adding to the diversity of the class this weekend.

A total of three GT Cup cars are entered for Road America, including a DIME Racing Lamborghini Huracan Super Trofeo car for Ricco Shlaimoun.

Twenty three GTS cars are listed, highlighted by the return of Performance Motorsports Group and drivers Parker Chase and Harry Gottsacker, who recently ended their planned full-season British GT Championship campaign.

A total of four Ginetta G55 GT4 cars will be on the grid this weekend, alongside Drew Staveley and Frank Gannett for Ian Lacy Racing.

IMSA Prototype Challenge Presented by Mazda star Austin Versteeg, meanwhile, is set for his PWC debut in one of ANSA Motorsports’ KTM X-Bow GT4s, with two new Ford Mustangs entered for Ernie Francis Jr. and James Pesek, respectively.

Track action gets underway on Thursday, with the 50-minute races set for Saturday and Sunday, in support of the Verizon IndyCar Series.