CREATE TABLE table_41423 ("Player" CLOB, "Club" CLOB, "League" FLOAT, "Play-offs" FLOAT, "FA Cup" FLOAT, "FA Trophy" FLOAT, "Total" FLOAT)

What is the highest play-offs that have stevenage borough as the club, and a total greater than 21?
SELECT MAX("Play-offs") FROM table_41423 WHERE "Club" = 'stevenage borough' AND "Total" > '21'
SELECT MAX("Play-offs") FROM "table_41423" WHERE "Club" = 'stevenage borough' AND "Total" > '21'