CREATE TABLE table_34503 ("Res." TEXT, "Record" TEXT, "Opponent" TEXT, "Method" TEXT, "Event" TEXT, "Round" FLOAT, "Time" TEXT, "Location" TEXT)

Which location held the bout that led to a 4-3 record?
SELECT "Location" FROM table_34503 WHERE "Record" = '4-3'
SELECT "Location" FROM "table_34503" WHERE "Record" = '4-3'