- Associated Press - Sunday, May 27, 2012

FORT WORTH, Texas — Zach Johnson won the Colonial for his first victory since also winning at Hogan’s Alley two years ago, pulling ahead Sunday when Jason Dufner finally faltered.

Johnson was assessed a two-stroke penalty for failing to replace his ball to its original position after marking before his final putt, leaving him with a one-stroke victory.

The penalty left Johnson with a 2-over 72 and a 12-under 268 total.

Dufner finished with a 74. Tommy Gainey was a distant third at 7 under after a 67. Johnson earned $1,152,000 for his eighth PGA Tour title.

In what was essentially a match-play final round for the Colonial plaid jacket, Johnson took command at the 414-yard 15th hole. Dufner’s approach rolled into a ditch and led to a triple bogey, putting him four strokes back.

Dufner won the Byron Nelson Championship last week in Irving for his second victory in a four-week span.

Chapman claims Senior PGA

BENTON HARBOR, Mich.Roger Chapman won the Senior PGA Championship, holding on for a two-stroke victory after leading comfortably throughout the final round Sunday.

Chapman led by five after 54 holes and never was threatened Sunday. His closing 1-over 72 was his worst score of the tournament — but it was enough to give the Englishman a win at the major championship.

Chapman, who had never won on the Champions Tour, finished at 13 under. He bogeyed three of the last five holes but had enough of a cushion that it didn’t matter.

John Cook was at 11 under after a 69. Hale Irwin shot 68 to finish another stroke back.

Donald reclaims No. 1 ranking

VIRGINIA WATER, England — Luke Donald held off Justin Rose to win the BMW PGA Championship for the second straight year and overtake Rory McIlroy for the No. 1 ranking.

Donald won by four strokes after starting the fourth round at Wentworth with a two-stroke lead. He shot a 4-under 68 to finish at 15 under. Sharing second place at the European Tour’s flagship event were Rose (70) of England and fast-closing Paul Lawrie (66) of Scotland.

This was Donald’s second victory of the year, following the Transitions Championship in the United States in March.