CREATE TABLE table_50219 ("Date" CLOB, "Opponent#" CLOB, "Rank #" CLOB, "Site" CLOB, "Result" CLOB, "Attendance" CLOB)

What was the rank when the opponent was Wisconsin (played at Wisconsin)?
SELECT "Rank #" FROM table_50219 WHERE "Opponent#" = 'at wisconsin'
SELECT "Rank #" FROM "table_50219" WHERE "Opponent#" = 'at wisconsin'