EXHIBIT 99.1 Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code I, George W. Buckley, Chief Executive Officer of Brunswick Corporation, certify that (i) Brunswick Corporation's report on Form 10-K for the fiscal year ended December 31, 2002, fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 and (ii) the information contained in Brunswick Corporation's report on Form 10-K for the fiscal year ended December 31, 2002, fairly presents, in all material respects, the financial condition and results of operations of Brunswick Corporation. /s/ GEORGE W. BUCKLEY - ---------------------------- George W. Buckley Chief Executive Officer March 11, 2003