CREATE TABLE table_50665 ("Opposing Team" CLOB, "Against" FLOAT, "Date" CLOB, "Venue" CLOB, "Status" CLOB)

Sum of cuyo selection as the opposing team?
SELECT SUM("Against") FROM table_50665 WHERE "Opposing Team" = 'cuyo selection'
SELECT SUM("Against") FROM "table_50665" WHERE "Opposing Team" = 'cuyo selection'