Exhibit 99.5


                            CERTIFICATION PURSUANT TO
            SECTION 1350, CHAPTER 63 OF TITLE 18, UNITED STATES CODE,
                             AS ADOPTED PURSUANT TO
                  SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

Pursuant to Section 1350, Chapter 63 of Title 18, United States Code, as adopted
pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, the undersigned, as
an executive officer of the chairman of Allmerica Financial Corporation (the
"Company"), does hereby certify that to the undersigned's knowledge:

     1)  the Company's Annual Report on Form 10-K for the year ended December
         31, 2002 (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 Company's Report fairly presents, in
         all material respects, the financial condition and results of
         operations of the Company.

                                    /s/ Robert P. Restrepo, Jr.

                                    Robert P. Restrepo, Jr.
                                    Executive Officer of the Chairman


Dated: March 24, 2003