CREATE TABLE table_38546 ("Res." TEXT, "Record" TEXT, "Opponent" TEXT, "Method" TEXT, "Event" TEXT, "Round" TEXT, "Time" TEXT, "Location" TEXT)

Which round was 2:30?
SELECT "Round" FROM table_38546 WHERE "Time" = '2:30'
SELECT "Round" FROM "table_38546" WHERE "Time" = '2:30'