CREATE TABLE table_64554 ("Year" FLOAT, "Champion" TEXT, "Score" TEXT, "Runner-up" TEXT, "City" TEXT, "Arena" TEXT)

In what arena was the North Dakota the runner-up?
SELECT "Arena" FROM table_64554 WHERE "Runner-up" = 'north dakota'
SELECT "Arena" FROM "table_64554" WHERE "Runner-up" = 'north dakota'