CREATE TABLE table_45419 ("Game" TEXT, "Date" TEXT, "Home team" TEXT, "Result" TEXT, "Road team" TEXT)

On what date was the game 1 played at Portland?
SELECT "Date" FROM table_45419 WHERE "Home team" = 'portland' AND "Game" = 'game 1'
SELECT "Date" FROM "table_45419" WHERE "Game" = 'game 1' AND "Home team" = 'portland'