CREATE TABLE table_66929 ("Res." TEXT, "Record" TEXT, "Opponent" TEXT, "Method" TEXT, "Event" TEXT, "Round" FLOAT, "Time" TEXT, "Location" TEXT)

Who is the opponent of the match with a method of submission (armbar) and a 9-3-1 record?
SELECT "Opponent" FROM table_66929 WHERE "Method" = 'submission (armbar)' AND "Record" = '9-3-1'
SELECT "Opponent" FROM "table_66929" WHERE "Method" = 'submission (armbar)' AND "Record" = '9-3-1'