CREATE TABLE table_54174 ("Date" TEXT, "Result" TEXT, "Opponent" TEXT, "Location" TEXT, "Method" TEXT)

What is the location for the win against Johan Mparmpagiannis?
SELECT "Location" FROM table_54174 WHERE "Result" = 'win' AND "Opponent" = 'johan mparmpagiannis'
SELECT "Location" FROM "table_54174" WHERE "Opponent" = 'johan mparmpagiannis' AND "Result" = 'win'