Exhibit 31.1

                                 CERTIFICATIONS

         I, Robert G. Gross, President and Chief Executive Officer, certify
that:

1.       I have reviewed this Form 10-Q of Monro Muffler Brake, Inc.;

2.       Based on my knowledge, this report does not contain any untrue
         statement of a material fact or omit to state a material fact necessary
         to make the statements made, in light of the circumstances under which
         such statements were made, 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 registrant as of, and for, the periods presented in this report;

4.       The registrant's other certifying officer and I are responsible for
         establishing and maintaining disclosure controls and procedures (as
         defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) for the Company
         and we have:

                      (a) Designed such disclosure controls and procedures, or
              caused such disclosure controls and procedures to be designed
              under our supervision, to ensure that material information
              relating to the Company, including its consolidated subsidiaries,
              is made known to us by others within those entities, particularly
              during the period in which this report is being prepared;

                      (b) Evaluated the effectiveness of the Company's
              disclosure controls and procedures and presented in this report
              our conclusions about the effectiveness of the controls and
              procedures, as of the end of the period covered by this report
              based on such evaluation; and

                      (c) Disclosed in this report any change in the Company's
              internal control over financial reporting that occurred during the
              Company's most recent fiscal quarter (the Company's fourth fiscal
              quarter in the case of an annual report) that has materially
              affected, or is reasonably likely to materially affect, the
              Company's internal control over financial reporting;

5.       The Company's other certifying officer and I have disclosed, based on
         our most recent evaluation of internal control over financial
         reporting, to the Company's auditors and the audit committee of the
         Company's board of directors (or persons performing the equivalent
         functions):

                      (a) All significant deficiencies and material weaknesses
              in the design or operation of internal control over financial
              reporting which are reasonably likely to adversely affect the
              Company'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 role in the
              Company's internal control over financial reporting.

         Date: August 12, 2003



                                          /s/ Robert G. Gross
                                          -------------------------------------
                                          Robert G. Gross
                                          President and Chief Executive Officer



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