X0306 4 2021-03-09 0 0000906553 BOYD GAMING CORP BYD 0001443809 Clinton Uri 3883 HOWARD HUGHES PARKWAY NINTH FLOOR LAS VEGAS NV 89169 0 1 0 0 EVP,General Counsel,Secretary Common Stock 2021-03-09 4 A 0 8201 0.00 A 8201 D The Reporting Person was awarded 8,201 Restricted Stock Units for no consideration pursuant to the Issuer's 2020 Stock Incentive Plan. Each Restricted Stock Unit represents a contingent right to receive one share of Issuer common stock upon vesting. The Restricted Stock Units will vest in full upon the third anniversary of the date of award. The Restricted Stock Units are subject to the forfeiture and other terms and conditions contained in the award agreement and the 2020 Stock Incentive Plan. /s/ Scott Lesmes, as Attorney-in-Fact 2021-03-11