Question: Who placed fourth when the winner was Greg Hancock?
SQL: SELECT "4th placed" FROM "1-21808535-1" WHERE "Winner" = 'Greg Hancock';

Question: Who was the runner-up on September 11?
SQL: SELECT "Runner-up" FROM "1-21808535-1" WHERE "Date" = 'September 11';

Question: How many rounds were on July 10?
SQL: SELECT COUNT("Round") FROM "1-21808535-1" WHERE "Date" = 'July 10';