It looks like the MDRA Trophy competitors racing at CFR can enter either the Sportsman class if they run slicks or the Pure street class if they have DOT Tires. Either way ET breaks would have to be observed. Even though CFR does not offer an actual "Trophy" class, I guess one perk in running at CFR is that these classes are cheaper to enter then the other tracks trophy classes on the MDRA schedule plus the CFR classes have a payout.