CREATE TABLE table_9744 ("Tournament" TEXT, "1985" TEXT, "1986" TEXT, "1987" TEXT, "1988" TEXT, "1989" TEXT, "1990" TEXT, "1991" TEXT, "1992" TEXT, "1993" TEXT, "1994" TEXT, "1995" TEXT, "1996" TEXT, "1997" TEXT, "1998" TEXT, "1999" TEXT, "2010" TEXT, "2011" TEXT)

What is the value in 1988 when it is 2R in 1997 and SF in 1993?
SELECT "1988" FROM table_9744 WHERE "1997" = '2r' AND "1993" = 'sf'
SELECT "1988" FROM "table_9744" WHERE "1993" = 'sf' AND "1997" = '2r'