CREATE TABLE table_64276 ("Res." TEXT, "Record" TEXT, "Opponent" TEXT, "Method" TEXT, "Event" TEXT, "Round" FLOAT, "Time" TEXT, "Location" TEXT)

Which round did the bout that led to a 1-0 record end in?
SELECT "Round" FROM table_64276 WHERE "Record" = '1-0'
SELECT "Round" FROM "table_64276" WHERE "Record" = '1-0'