CREATE TABLE table_54535 ("Date" TEXT, "Venue" TEXT, "Score" TEXT, "Result" TEXT, "Competition" TEXT)

Which competition did he win on August 15, 2012?
SELECT "Competition" FROM table_54535 WHERE "Result" = 'win' AND "Date" = 'august 15, 2012'
SELECT "Competition" FROM "table_54535" WHERE "Date" = 'august 15, 2012' AND "Result" = 'win'