After finishing the last 14 holes of the rain-delayed third round, Bean then made six birdies in the first nine holes of a final-round 66 to finish at 20-under 268, blowing away the 29-man field.
Jay Haas also had reason to celebrate after the Champions Tour's final event of the year despite his 16th-place finish at 4-under 284. Haas claimed the Schwab Cup at Sonoma Golf Club for the second time in three years as the winner of the tour's season-long points competition.
Bean earned $442,000 from the $2.5 million purse for his second Champions Tour victory of the season, just the third of his career. Haas claimed a $1 million annuity by winning the Schwab Cup.
Haas won the Schwab Cup despite getting no points Sunday after finishing out of the top 10. Fred Funk and Bernhard Langer, his main competition for the crown, also didn't earn any points.