ALTOONA, Iowa - Trainer Steve Asmussen shipped in a colt from his Churchill Downs string and a filly from his Lone Star Park outfit to easily sweep the final two stakes of the Prairie Meadows Thoroughbred meet, the $50,000 Prairie Gold Juvenile and the $50,000 Prairie Gold Lassie. Asmussen's talented duo easily dismissed their opponents in similar fashion in the five-furlong stakes.