The German star, playing in his fourth Champions Tour event since turning 50 on Aug. 27, birdied the final three holes to finish at 25-under 191 and match the scoring records for relation to par and low score. He opened with rounds of 62 and 65.
Loren Roberts also had a 25-under 191 total in the 2006 MasterCard Championship, and Bruce Fleisher finished the 2002 RJR Championship at 19-under 191.
Mark O'Meara (68) finished second, and Tom Kite (69) was third at 16 under.
Langer earned $255,000. Earlier this year, the two-time Masters winner lost a playoff to Rory Sabbatini in the PGA TOUR's Colonial in Fort Worth.
Langer started the tournament on Friday with a birdie and an eagle and he never eased his pace, leading each of the three days.
Kite reached 15 under with an eagle on the second hole to cut Langer's lead to three, but the German pushed the margin to four at No. 6 and never was even mildly tested again. Langer finished with a flourish, with five birdies on the final seven holes.
Jay Haas, the tour's leading money winner, overcame a quadruple bogey on the par-3 third hole and rallied for a 67 to tie for fourth with Lonnie Nielsen (68) at 14 under.
Haas earned $91,800 to pad his Champions Tour money lead.
Haas started the tournament in second place behind Loren Roberts in Charles Schwab points. Haas has led in points for 19 weeks, including seven weeks in a row, but Roberts won last week's Constellation Energy Senior Players Championship to get the lead.
Haas needed to win the tournament to surpass Roberts for the points lead. Haas earned 92 points this week and now trails Roberts by 69 points.
John Cook and Phil Blackmar played in their first Champions Tour events. Cook closed with a 69 to tie for 36th at 6 under, while Blackmar shot a 76 to tie for 70th at 2 over.
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