CREATE TABLE table_31735 ("Date" CLOB, "Track" CLOB, "Event Name" CLOB, "Pole Winner" CLOB, "Race Winner" CLOB)

Who was the Race Winner of the Southern Illinois 100?
SELECT "Race Winner" FROM table_31735 WHERE "Event Name" = 'southern illinois 100'
SELECT "Race Winner" FROM "table_31735" WHERE "Event Name" = 'southern illinois 100'