The victory was an emotional one for Mickelson: His wife, Amy, traveled with him to the tournament for the first time since she was diagnosed with breast cancer in May 2009. Mickelson's mother is also battling breast cancer.
Woods' final day of play was marred by inconsistency. He tied with K.J. Choi for fourth place, finishing behind Mickelson, Lee Westwood and Anthony Kim.
The tournament was Woods' first since his Thanksgiving car accident and subsequent infidelity scandal. At a news conference Monday, Woods said the reception he received during his first Masters practice round "blew me away ... It was something that touched my heart pretty good." Woods' highly publicized return during Thursday's first round of the tournament became ESPN's most-viewed golf telecast in cable history with 4.9 million viewers.