Former two-year college chancellor Bradley Byrne will be in a runoff for the GOP nomination July 13.
It will take a recount from Tuesday's election to see if his opponent will be Robert Bentley or Tim James. The unofficial results show Bentley leading James by 208 votes.
Sparks held a news conference at his campaign headquarters Wednesday, where he said he plans to run a positive, clean campaign in the general election.
Sparks said he will continue to stress the creation of an education lottery like Georgia's and the taxation and regulation of gambling.