Form: 10-Q

Quarterly report pursuant to Section 13 or 15(d)

May 15, 2003

CERTIFICATION

Published on May 15, 2003



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 Quarterly Report of RenaissanceRe Holdings Ltd. (the
"Company") on Form 10-Q for the period ending March 31, 2003 as filed with
the Securities and Exchange Commission on the date hereof (the "Report"), I,
James N. Stanard, 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 financial condition and results of operations of the
Company.


/s/ James N. Stanard
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James N. Stanard
Chief Executive Officer
May 15, 2003