Value is with the Yanks at -350
Martis is going to be in a whole world of trouble. Lefties bat .326 against him. The Yanks have Damon, Texeria, Cano, Posada, Matsui, Swisher, Melky. Martis also pitches to contact BB+SP/IP = .82
Also an extreme fly ball pitcher of a GB/FB ratio of .74 Not a good combination for Yankee stadium. Look what happened when Martis visited Citizen Bank park twice this year.
Offensively the Nationals suck, but they suck even worse batting against lefties @ .245 on the season. They are also in a major slump batting .221 the last 7 days. Everything points to the Yankees. Use them in parlays.