David Frost wins AT&T Championship in playoff SAN ANTONIO (AP) - David Frost won the AT&T Championship on Sunday, beating Bernhard Langer with a birdie on the second hole of a playoff after overcoming a six-stroke deficit in the final round. Frost and Langer each shot 6-under 66 to finish at 8-under 208 on TPC San Antonio's Canyons Course. Second-round leader Mark Calcavecchia had a 74 to finish two strokes back. He bogeyed four of the first 11 holes. The 53-year-old Frost also teamed with Michael Allen to win the Legends of Golf in April and has three career Champions Tour victories. The South African won 10 times on the PGA Tour. 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, Ariz.