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


        I, Jerome T. Fadden, President and Chief Executive Officer of Platinum
Underwriters Holdings, Ltd., hereby certify to the best of my knowledge and
belief that this Annual Report on Form 10-K fully complies with the
requirements of Section 13(a) or 15(d) of the Securities and Exchange Act of
1934 (15 U.S.C. 78m(a) or 78o(d)) and that the information contained in this
Annual Report on Form 10-K fairly represents, in all material respects, the
financial condition and results of operations of Platinum Underwriters
Holdings, Ltd.


Date:  March 26, 2003



/s/ Jerome T. Fadden
- --------------------
Jerome T. Fadden
President and Chief Executive Officer