UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): Boyd Gaming Corporati UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C.

20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): AugBoyd Gaming Corpo Operating Agreement of WSB-BYD LLC, a Nevada Limited-Liability Company, dated June 7, 2022.īOYD GAMING REPORTS FIRST-QUARTER 2022 RESULTS Operating Momentum Continues with Record First-Quarter Revenues, Adjusted EBITDAR, Operating Margins and Net IncomeīOYD GAMING TO ACQUIRE PALA INTERACTIVE Transaction Advances Company’s iGaming StrategyīOYD GAMING REPORTS FOURTH-QUARTER, FULL-YEAR 2021 RESULTS Company Sets Fourth-Quarter, Full-Year Records for Revenues, Adjusted EBITDAR and Net Income Board Reinstates Quarterly Dividend, Increases Payout to $0.15 Per ShareīOYD GAMING REPORTS THIRD-QUARTER 2021 RESULTS Strong Revenue Growth, Margin Expansion Drive Record Third- Quarter Adjusted EBITDAR Performances Across All Operating Segments Board of Directors Authorizes $300 Million Share Repurchase ProgramīOYD GAMING REPORTS SECOND-QUARTER 2021 RESULTS Strong Operating Momentum Continues with All-Time Records for Companywide Adjusted EBITDAR and Operating Margins Net Income Reaches $113.7 MillionīOYD GAMING CORPORATION CLOSES OFFERING OF 4.750% SENIOR NOTES DUE 2031īOYD GAMING CORPORATION ANNOUNCES PRICING OF 4.750% SENIOR NOTES DUE 2031 OFFERING SIZE INCREASED TO $900 MILLIONįinancial Statements and Exhibits, Results of Operations and Financial Condition BOYD GAMING REPORTS THIRD-QUARTER 2023 RESULTSīOYD GAMING REPORTS SECOND-QUARTER 2023 RESULTSīOYD GAMING REPORTS FIRST-QUARTER 2023 RESULTSīOYD GAMING CORPORATION CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONSīOYD GAMING REPORTS FOURTH-QUARTER, FULL-YEAR 2022 RESULTSīOYD GAMING COMPLETES ACQUISITION OF PALA INTERACTIVEīOYD GAMING REPORTS THIRD-QUARTER 2022 RESULTSīOYD GAMING REPORTS SECOND-QUARTER 2022 RESULTS

Boyd gaming ameristar casino w2