Boyd Gaming Closing of Offering

Boyd Gaming Corporation today announced that, in connection with its recently completed secondary offering of common stock by Michael J. Gaughan, the underwriters exercised their over-allotment option in full, purchasing an additional 500,000 shares of the company's common stock owned by Mr. Gaughan. The shares were purchased to cover over-allotments and were sold at $33.75 per share, before taking into account applicable underwriting discounts and commissions. The closing took place today.

Deutsche Bank Securities Inc. and Lehman Brothers Inc. acted as joint book-running managers of the offering. A copy of the prospectus and prospectus supplement in connection with the offering may be obtained from the prospectus department of Deutsche Bank Securities Inc., 60 Wall Street, New York, New York 10005 (telephone: 1-800-503-4611) or Lehman Brothers Inc. c/o ADP Financial Services, Integrated Distribution Services, 1155

2006-09-06