Davey Hamilton JrOpen Wheel Showdown Promoter Davey Hamilton, Jr. came into The Freak Nation this week while he was painting walls and solving hundreds of issues getting ready for the richest pavement sprint car show, the Riskon360! Open Wheel Showdown for Winged Sprint Cars at the Bullring at Las Vegas Motor Speedway. Aaron Willison of Langley, British Columbia, Canada led wire-to-wire for the $50,000 US payday, the largest in pavement open wheel history. Willison dominated the final 30 laps for a 4.882 second advantage at the checkered flag. Santos finished second followed by tenth-starting Hamilton in third. Listen…