What about taking all the cars that show up and avg their qualifying runs. Then set that as the index with a point system. Everyone races 3 runs against the cars closest to your ET. You get 1 point for winning each race heads up. Then after 3 runs you get points for your avg ET being close to the index. 3 points for within 1 tenth, 2 points with within 2 tenths, 1 point for within 3 tenths. You can go under the index. Ties broken by lowest qualifying ET.