Exhibit 3.216

[Seal of the State of Nevada] DEAN HELLER Secretary of State 206 North Carson Street Carson City, Nevada 89701-4299 (775) 684 5708 Website: secretaryofstate.blz

Articles Of Organization

Limited-Liability Company

(PURSUANT TO NRS 86)

    Important: Read attached instructions before completing form.                                                                  ABOVE SPACE IS FOR OFFICE USE ONLY

1. Name of Limited-    Liability Company	Harrah’s Chester Downs Management Company, LLC
2. Resident Agent    Name and Street    Address:    (must be a Nevada    Address where process    may be served)	CSC Services of Nevada, Inc. Name 502 East John Street Physical Street Address Additional Mailing Address	Carson City City City	NEVADA    89706                       Zip Code State            Zip Code
3. Dissolution Date:      (OPTIONAL-see instructions)	Latest Date upon which the company is to dissolve (if existence is not perpetual):
4. Management:      (check one)	Company shall be managed by	¨    Manager(s)    OR    þ    Members
5. Name Addresses,    of Manager(s) or    Members:    (attach additional    pages as necessary)	Harrah’s Operating Company, Inc. Name One Harrah’s Court Address Name Address	Las Vegas City City	NV            89119 State          Zip Code State          Zip Code
	Name Address	City	State         Zip Code
6. Names, Addresses    and signatures of    Organizers:    (if more than one    organizer attach    additional page)	Angela P. Winter Name One Harrah’s Court Address	/s/ Angela P. Winter Signature Las Vegas City	NV            89119 State          Zip Code
7. Certificate of    Acceptance of    Appointment of    Resident Agent:	I hereby accept appointment as Resident Agent for the above named limited-liability company.     CSC Services of Nevada, Inc.
	By: Authorized Signature of R.A. or On Behalf of R.A. Company		7/26/2004 Date