UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of
the Securities Exchange Act of 1934 (Amendment No. )

Filed by the Registrant x

Filed by a Party other than the Registrant o

Check the appropriate box:
o	Preliminary Proxy Statement
o	Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))
o	Definitive Proxy Statement
x	Definitive Additional Materials
o	Soliciting Material under §240.14a-12

RED ROBIN GOURMET BURGERS, INC.
(Name of Registrant as Specified In Its Charter)


(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

Payment of Filing Fee (Check the appropriate box):
x	No fee required.
o	Fee computed on table below per Exchange Act Rules 14a-6(i)(1) and 0-11.
	(1)		Title of each class of securities to which transaction applies:

	(2)		Aggregate number of securities to which transaction applies:

	(3)		Per unit price or other underlying value of transaction computed pursuant to Exchange Act Rule 0-11 (set forth the amount on which the filing fee is calculated and state how it was determined):

	(4)		Proposed maximum aggregate value of transaction:

	(5)		Total fee paid:

o	Fee paid previously with preliminary materials.
o	Check box if any part of the fee is offset as provided by Exchange Act Rule 0-11(a)(2) and identify the filing for which the offsetting fee was paid previously. Identify the previous filing by registration statement number, or the Form or Schedule and the date of its filing.
	(1)	Amount Previously Paid:

	(2)	Form, Schedule or Registration Statement No.:

	(3)	Filing Party:

	(4)	Date Filed:

*** Exercise Your Right to Vote *** Important Notice Regarding the Availability of Proxy Materials for the Shareholder Meeting to Be Held on May 21, 2020 RED ROBIN GOURMET BURGERS, INC. Date: May 21, 2020 Time: 8:00 AM MDT You are receiving this communication because you hold shares in the above named company. This is not a ballot. You cannot use this notice to vote these shares. This communication presents only an overview of the more complete proxy materials that are available to you on the Internet. You may view the proxy materials online at www.proxyvote.com or easily request a paper copy (see reverse side). We encourage you to access and review all of the important information contained in the proxy materials before voting. Envelope # # of # Sequence # 1 OF 2 12 15 0000455658_1 R1.0.1.18 Broadridge Internal Use Only Job # Sequence # See the reverse side of this notice to obtain proxy materials and voting instructions. LOGO Return Address Line 1 Return Address Line 2 Return Address Line 3 51 MERCEDES WAY EDGEWOOD NY 11717 Investor Address Line 1 Investor Address Line 2 Investor Address Line 3 Investor Address Line 4 Investor Address Line 5 John Sample 1234 ANYWHERE STREET ANY CITY, ON A1A 1A1 1234567 1234567 1234567 1234567 1234567 1234567 BROKER HERE Meeting Information Meeting Type: Annual Meeting For holders as of: March 30, 2020 Location: Red Robin Gourmet Burgers, Inc. YummmU 10000 East Geddes Avenue Unit 500 Englewood, CO 80112 B A R C O D E

Before You Vote How to Access the Proxy Materials Proxy Materials Available to VIEW or RECEIVE: Have the information that is printed in the box marked by the arrow (located on the by the arrow (located on the following page) in the subject line. How To Vote Please Choose One of the Following Voting Methods Only Vote By Mail: You can vote by mail by requesting a paper copy of the materials, which will include a voting instruction form. 0000455658_2 R1.0.1.18 Vote In Person: If you choose to vote these shares in person at the meeting, you must request a "legal proxy." To do so, please follow the instructions at www.proxyvote.com or request a paper copy of the materials, which will contain the appropriate instructions. Many shareholder meetings have attendance requirements including, but not limited to, the possession of an attendance ticket issued by the entity holding the meeting. Please check the meeting materials for any special requirements for meeting attendance. Vote By Internet: To vote now by Internet, go to www.proxyvote.com. Have the information that is printed in the box marked by the arrow available and follow the instructions. Internal Use 1. Notice & Proxy Statement2. Form 10-K How to View Online: following page) and visit: www.proxyvote.com. How to Request and Receive a PAPER or E-MAIL Copy: If you want to receive a paper or e-mail copy of these documents, you must request one. There is NO charge for requesting a copy. Please choose one of the following methods to make your request: 1) BY INTERNET:www.proxyvote.com 2) BY TELEPHONE:1-800-579-1639 3) BY E-MAIL*:sendmaterial@proxyvote.com * If requesting materials by e-mail, please send a blank e-mail with the information that is printed in the box marked Requests, instructions and other inquiries sent to this e-mail address will NOT be forwarded to your investment advisor. Please make the request as instructed above on or before May 06, 2020 to facilitate timely delivery.

The Board of Directors recommends you vote FOR the following proposal(s): 1. Election of Directors Approval of the Amendment to the Amended and Restated Employee Stock Purchase Plan. 3 Nominees 1A Anthony S. Ackil 1B Thomas G. Conforti 4 Approval of the Amendment to the 2017 Performance Incentive Plan. 1C Cambria W. Dunaway 5 Ratification of the appointment of KPMG LLP as the Company's independent auditors for the fiscal year ending December 27, 2020. 1D G.J. Hart 1E Kalen F. Holmes 1F Glenn B. Kaufman 1G Steven K. Lumpkin 1H Paul J.B. Murphy III 1I David A. Pace 1J Allison Page The Board of Directors recommends you vote FOR the following proposal(s): 2Approval, on an advisory basis, of the Company's executive compensation. xxxxxxxxxx Envelope # # of # Sequence # 0000455658_3 R1.0.1.18 Broadridge Internal Use Only xxxxxxxxxx Cusip Job # Sequence # B A R C O D E 23456789012 2 2 2 2 12345678901 12345678901 12345678901 12345678901 12345678901 12345678901 12345678901 12345678901 12345678901 12345678901 Voting items

NOTE: Such other business as may properly come before the meeting or any adjournment thereof. In the event it is not possible or advisable to hold our annual meeting in person due to concerns regarding the coronavirus (COVID-19), we will announce alternative arrangements for the meeting as soon as practicable, which may include holding the meeting solely by means of remote communication. Please monitor our annual meeting website at http://www.redrobin.com/eproxy for updated information. Enve1lo2pe # # 0000455658_4 R1.0.1.18 Broadridge Internal Use Only THIS SPACE RESERVED FOR SIGNATURES IF APPLICABLE P99999Jo-0b1#0 Sequ1e5nce # of # S#eqOueFnce ## THIS SPACE RESERVED FOR LANGUAGE PERTAINING TO BANKS AND BROKERS AS REQUIRED BY THE NEW YORK STOCK EXCHANGE Voting Instructions Voting items Continued Reserved for Broadridge Internal Control Information