21,004 people attended the July 1 game between the Mariners and the Toronto Blue Jays.
[['July 1', 'ATTENDANCE', '21,004'], ['[TABLECONTEXT]', 'DATE', 'July 1'], ['[TABLECONTEXT]', '[TITLE]', '1982 Toronto Blue Jays season'], ['July 1', 'OPPONENT', 'Mariners']]