The TUDOR United SportsCar Championship may be back over 50 cars, with 51 listed for the next round of the season, the Continental Tire Road Race Showcase at Elkhart Lake’s Road America on August 10.

The Prototype class should see 12 cars, with the rebuilt DeltaWing coupe set to resume following the car’s fire at Canadian Tire Motorsport Park.

ENTRY LIST: Continental Tire Road Race Showcase

The team had its best run of 2013 at Road America in the open-top spyder’s finale a year ago, with drivers Andy Meyrick and Katherine Legge.

Elsewhere, Olivier Pla is set to resume alongside Gustavo Yacaman at OAK Racing, with Memo Rojas expected to return at Chip Ganassi Racing with Felix Sabates.

Burt Frisselle is listed alongside Eric Curran at Marsh Racing for the second consecutive race, with the status of Boris Said still uncertain.

There’s no sign of the Honda-powered Starworks Riley DP, which was slated to rejoin for this round. It’s understood the car is set to begin testing shortly.

The 10-car Prototype Challenge field has Indianapolis winner Jack Hawksworth once again racing with Chris Cumming in the No. 08 RSR Racing Oreca FLM09, as Alex Tagliani has a prior conflict.

Martin Plowman and Doug Bielefeld are anticipated to share Brian Alder’s No. 88 BAR1 Motorsports Oreca FLM09 once again. Local driver James French of Sheboygan, Wis. is expected to continue alongside David Ostella for a second consecutive race at Performance Tech Motorsports.

There’s no GT Le Mans changes other than the Porsches taking on their new Adjustment of Performance numbers, while GT Daytona is expected to see the return of Kevin Estre at Park Place Motorsports, Ben Barker at GB Autosport and Markus Palttala at Turner Motorsport after all three drivers missed Indianapolis.