EXHIBIT 99.1


                            CERTIFICATION PURSUANT TO
                             18 U.S.C. SECTION 1350,
                             AS ADOPTED PURSUANT TO
                  SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Annual Report on Form 10-K of PolyOne Corporation (the
"Company") for the period ending December 31, 2002 as filed with the Securities
and Exchange Commission on the date hereof (the "Report"), I, Thomas A.
Waltermire, Chairman of the Board, President and Chief Executive Officer of the
Company, do hereby certify, pursuant to 18 U.S.C. ss. 1350, as adopted pursuant
to ss. 906 of the Sarbanes-Oxley Act of 2002, that, to my knowledge:

     (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 financial condition and result of operations of
          the Company.





/s/ Thomas A. Waltermire

Thomas A. Waltermire
Chairman of the Board, President and Chief Executive Officer
March 25, 2003




A signed original of this written statement required by
Section 906 has been provided to PolyOne Corporation
and will be retained by PolyOne Corporation and
furnished to the Securities and Exchange Commission
or its staff upon request.