Rubuta ci gaba ga wannan sakin layi - A ranar 31 ga Yuli, 2009, an yi musayar shi zuwa Yankees na New York don karamin karɓar Chase Weems. A ranar 1 ga Agusta, 2009, Hairston ya sami nasararsa ta farko da RBI a matsayin Yankee. A ranar 17 ga Oktoba, 2009, ya samu nasarar buga wasan farko a kakar wasa ta farko a kakar wasa ta farko a kakar wasa ta farko kuma daga baya ya kawo karshen wasan kwaikwayo na 13 na ALCS
Wasan wasa na 2 ta hanyar cin kwallaye akan kuskuren Maicer Izturis na Angels. Wannan ya baiwa Yankees damar samun nasara ta 2-0 zuwa wasa na uku na jerin. Ya sami bugun jini 1 a cikin 6 a-bats don Yankees a cikin Wasannin Duniya na 2009. A cikin rabin kakar wasa tare da Yanks, ya buga.237 tare da 2 homeruns da 12 RBIs a cikin wasanni 45.