Langer sank a 12-foot putt on the 54th and final hole of regulation to tie Haas at 14-under-par 199. The two players each had two birdies in the first six playoff holes, before Langer tapped in for the winning birdie on No. 18.
The event produced at least $1 million in charitable proceeds that went to Hoag Hospital.
10 UCI baseball: The Anteaters came within three outs of a return trip to the College World Series, before host LSU rallied for five runs in the ninth to erase a 7-4 deficit and even the best-of-three Super Regional at one game apiece.
The Tigers then won the decisive third game, 21-7, to advance to Omaha and end the season for the Anteaters (42-18).