CREATE TABLE table_53296 ("Event" TEXT, "Record" TEXT, "Athlete" TEXT, "Nationality" TEXT, "Date" TEXT)

On 11 July 2003, which athlete performed?
SELECT "Athlete" FROM table_53296 WHERE "Date" = '11 july 2003'
SELECT "Athlete" FROM "table_53296" WHERE "Date" = '11 july 2003'