CREATE TABLE table_42305 ("Aces" FLOAT, "Player" CLOB, "Opponent" CLOB, "Year" FLOAT, "Event" CLOB, "Sets" FLOAT, "Result" CLOB)

what year was the memphis event?
SELECT SUM("Year") FROM table_42305 WHERE "Event" = 'memphis'
SELECT SUM("Year") FROM "table_42305" WHERE "Event" = 'memphis'