SiriusPoint (SPNT) 10-Q 2018 Q3 Quarterly report

Exhibit 32.1

Third Point Reinsurance Ltd.

CERTIFICATION OF CHIEF EXECUTIVE OFFICER

PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

I, J. Robert Bredahl, President and Chief Executive Officer of Third Point Reinsurance Ltd. (the “Company”), do hereby certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to the best of my knowledge:

(1) the Quarterly Report on Form 10-Q of the Company for the fiscal period ended September 30, 2018 (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.

Date: November 6, 2018

/s/ J. Robert Bredahl

J. Robert Bredahl

President and Chief Executive Officer

(Principal Executive Officer)