 Overall, Dukes hit for a .264 batting average, with a .386 on-base percentage, .478 slugging percentage, 13 home runs and 44 runs batted in with a total of 276 at bats in 81 games during the 2008 season.Dukes was released by the Nationals on March 17, 2010.Following his release from the Nationals, Dukes reportedly agreed to a deal with the Tabasco Olmecas of the Mexican League in early April, but backed out after not showing up for a reporting date.