CREATE TABLE table_50719 ("Res." TEXT, "Record" TEXT, "Opponent" TEXT, "Method" TEXT, "Event" TEXT, "Round" FLOAT)

What was the resolution for the fight against enrique guzman?
SELECT "Res." FROM table_50719 WHERE "Opponent" = 'enrique guzman'
SELECT "Res." FROM "table_50719" WHERE "Opponent" = 'enrique guzman'