Kendrick, 27, went 8-6 with a 3.22 ERA in 34 games for the Phillies last year. He made 15 starts, as Philadelphia won the National League East division title. He is now under contract through 2013, and the deal includes performance and award bonuses.
Kendrick was at his best within the division last year. In 18 games against the NL East, in fact, he went 5-2 with a 2.14 ERA.
Drafted by the Phillies in the seventh round of the 2003 draft, Kendrick is 43-30 for his career, with a 4.41 ERA in 127 games. He has made 98 career starts.