**Certification Pursuant to Section 302**
**EXHIBIT 31.1**
I, Thomas W. Jasper, Chief Executive Officer of Primus Guaranty, Ltd. certify that:
1.    I have reviewed this Quarterly Report on Form 10-Q of Primus Guaranty, Ltd.;
2.    Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to statea material fact necessary to make the statements made, in light of the circumstances under which such statements weremade, not misleading with respect to the period covered by this report;
3.    Based on my knowledge, the financial statements, and other financial information included in this report,fairly present in all material respects the financial condition, results of operations and cash flows of the registrantas of, and for, the periods presented in this report;
4.    The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosurecontrols and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financialreporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:
a)    Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to bedesigned under our supervision, to ensure that material information relating to the registrant, including itsconsolidated subsidiaries, is made known to us by others within those entities, particularly during the period in whichthis report is being prepared;
b)    Designed such internal control over financial reporting, or caused such internal control over financialreporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financialreporting and in the preparation of financial statements for external purposes in accordance with generally acceptedaccounting principles;
c)    Evaluated the effectiveness of the registrant’s disclosure controls and procedures, and presented in thisreport our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the periodcovered by this report based on such evaluation; and
d)    Disclosed in this report any change in the registrant’s internal control over financial reporting thatoccurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of anannual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internalcontrol over financial reporting; and
5.    The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation ofinternal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’sboard of directors (or persons performing the equivalent functions):
a)    All significant deficiencies and material weaknesses in the design or operation of internal control overfinancial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process,summarize, and report financial information; and
b)    Any fraud, whether or not material, that involves management or other employees who have a significant rolein the registrant’s internal control over financial reporting.
Date: November 10, 2008
By:  /s/ Thomas W. Jasper