BOONE, Iowa – The biggest dirt track racing event in the world will have a world-class payout.When 800-plus drivers from coast to coast and border to border exit Boone Speedway, they’ll have earned shares of an approximate $275,000 purse over the course of the Sept. 7-12 IMCA Speedway Motors Super Nationals fueled by Casey’s.Figure in another $60,000 or so in contingency awards and it’s clear that Super Nationals continues to be the most prestigious, top-paying event for grassroots racers.“Our goal has always been to maintain reasonable entry fees and admission prices while still providing the best possible purse structure at Super Nationals and we accomplish that in conjunction with a lot of great contingencies,” IMCA President Brett Root said.Saturday’s Modified main event pays a minimum of $2,000 to win and $1,000 to start. The champion earns a $100 bonus for each of as many as 50 sanctioned starts made previously to Super Nationals, making for a possible $7,000 payday.Two qualifying features for Modifieds will be held each night Wednesday, Thursday and Friday with a payout totaling $11,260.The Stock Car main event pays a minimum of $1,000 to win and $300 to start. The champion’s bonus is a potential $1,500, $50 for each of as many as 50 sanctioned starts.Modified drivers are guaranteed $300 providing they race each night Wednesday through Saturday. Stock Car drivers are guaranteed $200 if they race Wednesday, Thursday and Friday.Northern SportMods race for a minimum of $1,000 to win and $100 to start, Hobby Stocks for a minimum of $600 to win and $100 to start.There’s a $25 per start up to 50 starts bonus for both divisions, which could add up to $1,250 to each champion’s share.Champions’ engines will be claimed and sold at public auction in the infield at Boone following the conclusion of Saturday’s program. Proceeds will be divided among all other drivers in the respective main events.The Deery Brothers Summer Series event on Labor Day totes the regular Late Model tour $3,000 to win, minimum $300 to start purse, plus a bonus of as much as $1,500 based on $30 for each of as many as 50 starts.Tuesday’s Sport Compact champion can double their $250 winnings with a $5 bonus for each of up to 50 starts. Taking the green flag in that main event pays a minimum of $50.All six Super Nationals champions receive posted payouts before leaving the speedway. Bonuses will be presented during the national awards banquet in Lincoln, Neb., in November.