Exhibit 99.1

Certification of Nelson J. Marchioli
President and Chief Executive Officer of Denny's Corporation
Pursuant to 18 U.S.C. Section 1350,
As Adopted Pursuant to
Section 906 of the Sarbanes-Oxley Act of 2002

          In connection with Amendment No. 1 of the Annual Report of Denny's
Corporation (the "Company") on Form 10-K/A for the year ended December 25, 2002
as filed with the Securities and Exchange Commission on the date hereof (the
"Report"), I, Nelson J. Marchioli, President and Chief Executive Officer of the
Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to
Section 906 of the Sarbanes-Oxley Act of 2002, that:

         1)    The Report fully complies with the requirements of Section 13(a)
               or 15(d) of the Securities Exchange Act of 1934; and

         2)    The information contained in the Report fairly presents, in all
               material respects, the net assets available for benefits and
               changes in net assets available for benefits of the Plans.


/s/ Nelson J. Marchioli
- -----------------------
Nelson J. Marchioli
President and Chief Executive Officer

June 30, 2003


A signed original of this written statement required by Section 906, or other
document authenticating, acknowledging, or otherwise adopting the signature that
appears in typed form within the electronic version of this written statement
required by Section 906, has been provided to Denny's Corporation and will be
retained by Denny's Corporation and furnished to the Securities and Exchange
Commission or its staff upon request.