Hawthorne Race Course received permission from the Illinois Racing Board on Tuesday to reduce the purse of the Grade 3 Illinois Derby from $500,000 to $250,000. The racing board also approved Hawthorne’s request to postpone the Grade 3, $200,000 Sixty Sails until sometime during the track’s fall meet, and to eliminate four Sundays from the Hawthorne race dates the board had approved last fall.