2012 Mirza Shrine Combine "Demo Derby" & Compact Car "Krazy 8 Race". September 8th, at the Humboldt Speedway. Pit gates open at 2PM, spectator gates at 3PM. Derby starts at 6PM. Adults $10, Kids 13 - 6 $5, Under 6 FREE! Concession and Beer, NO COOLERS. Contact Jim for more information 620-433-2178. All proceeds go to Mirza Shrine.