CREATE TABLE table_71226 ("Date" CLOB, "Opponent" CLOB, "Score" CLOB, "Loss" CLOB, "Attendance" FLOAT, "Record" CLOB)

Which opponent played on July 15?
SELECT "Opponent" FROM table_71226 WHERE "Date" = 'july 15'
SELECT "Opponent" FROM "table_71226" WHERE "Date" = 'july 15'