SAN ANTONIO --
Frost and Langer each shot 6-under 66 to finish at 8-under 208 on TPC San Antonio's Canyons Course.
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The 53-year-old Frost also teamed with
The tournament was the final full-field end of the year. The top 30 on the money list qualified for the Charles Schwab Cup Championship at Desert Mountain in Scottsdale, Arizona.
Langer, the German star who has two victories this year, left his approach in regulation on No. 18 short in a deep bunker. His blast went about 6 feet past, and made the putt to save par.
Frost missed a birdie putt of about 25 feet and tapped in for par to set up the playoff.
On the first extra hole, Langer lipped out a 10-foot birdie putt.
Tommy Armour III shot a 67 to finish fourth at 5 under.