Mahan wins Houston Open

American Hunter Mahan became the first golfer to record multiple wins on the PGA Tour this year by claiming a one-stroke victory over Sweden's Carl Pettersson at the Houston Open in Humble, Texas, on Sunday.

HUMBLE, TX - APRIL 01: Hunter Mahan watches his tee shot on the second hole during the final round of the Shell Houston Open at Redstone Golf Club on April 1, 2012 in Humble, Texas. (Photo by Matt Sullivan/Getty Images)
Shell Houston Open - Final Round
HUMBLE, TX - APRIL 01: Hunter Mahan watches his tee shot on the second hole during the final round of the Shell Houston Open at Redstone Golf Club on April 1, 2012 in Humble, Texas. (Photo by Matt Sullivan/Getty Images)
HUMBLE, TX - APRIL 01: Hunter Mahan holds the winners trophy with his wife, Kandi, on the green of the 18th hole after the final round of the Shell Houston Open at Redstone Golf Club on April 1, 2012 in Humble, Texas. (Photo by Matt Sullivan/Getty Images)
Shell Houston Open - Final Round
HUMBLE, TX - APRIL 01: Hunter Mahan holds the winners trophy with his wife, Kandi, on the green of the 18th hole after the final round of the Shell Houston Open at Redstone Golf Club on April 1, 2012 in Humble, Texas. (Photo by Matt Sullivan/Getty Images)
HUMBLE, TX - APRIL 01: Hunter Mahan talks with his caddie, John Wood, before his second shot on the 15th hole during the final round of the Shell Houston Open at Redstone Golf Club on April 1, 2012 in Humble, Texas. (Photo by Matt Sullivan/Getty Images)
Shell Houston Open - Final Round
HUMBLE, TX - APRIL 01: Hunter Mahan talks with his caddie, John Wood, before his second shot on the 15th hole during the final round of the Shell Houston Open at Redstone Golf Club on April 1, 2012 in Humble, Texas. (Photo by Matt Sullivan/Getty Images)
HUMBLE, TX - MARCH 30: Louis Oosthuizen of South Africa watches his tee shot on the 18th hole during the second round of the Shell Houston Open at Redstone Golf Club on March 30, 2012 in Humble, Texas. (Photo by Matt Sullivan/Getty Images)
Shell Houston Open - Round Two
HUMBLE, TX - MARCH 30: Louis Oosthuizen of South Africa watches his tee shot on the 18th hole during the second round of the Shell Houston Open at Redstone Golf Club on March 30, 2012 in Humble, Texas. (Photo by Matt Sullivan/Getty Images)
Phil Mickelson putts on the first hole green during the second round of the Houston Open golf tournament, Friday, March 30, 2012, in Humble, Texas. (AP Photo/Eric Kayne)
Phil Mickelson putts on the first hole green during the second round of the Houston Open golf tournament, Friday, March 30, 2012, in Humble, Texas. (AP Photo/Eric Kayne)
Phil Mickelson putts on the first hole green during the second round of the Houston Open golf tournament, Friday, March 30, 2012, in Humble, Texas. (AP Photo/Eric Kayne)
HUMBLE, TX - MARCH 30: Brian Davis of England hits his third shot on the eighth hole during the second round of the Shell Houston Open at Redstone Golf Club on March 30, 2012 in Humble, Texas. (Photo by Matt Sullivan/Getty Images)
Shell Houston Open - Round Two
HUMBLE, TX - MARCH 30: Brian Davis of England hits his third shot on the eighth hole during the second round of the Shell Houston Open at Redstone Golf Club on March 30, 2012 in Humble, Texas. (Photo by Matt Sullivan/Getty Images)
HUMBLE, TX - MARCH 30: Padraig Harrington of Ireland hits his tee shot on the third hole during the completion of the weather-delayed first round of the Shell Houston Open at Redstone Golf Club on March 30, 2012 in Humble, Texas. (Photo by Matt Sullivan/Getty Images)
Shell Houston Open - Round One
HUMBLE, TX - MARCH 30: Padraig Harrington of Ireland hits his tee shot on the third hole during the completion of the weather-delayed first round of the Shell Houston Open at Redstone Golf Club on March 30, 2012 in Humble, Texas. (Photo by Matt Sullivan/Getty Images)
HUMBLE, TX - MARCH 30: Padraig Harrington of Ireland watches his tee shot on the ninth hole during the completion of the weather-delayed first round of the Shell Houston open at Redstone Golf Club on March 30, 2012 in Humble, Texas. (Photo by Scott Halleran/Getty Images)
Shell Houston Open - Round One
HUMBLE, TX - MARCH 30: Padraig Harrington of Ireland watches his tee shot on the ninth hole during the completion of the weather-delayed first round of the Shell Houston open at Redstone Golf Club on March 30, 2012 in Humble, Texas. (Photo by Scott Halleran/Getty Images)
HUMBLE, TX - MARCH 30: Louis Oosthuizen of South Africa watches his approach shot on the second hole during the completion of the weather-delayed first round of the Shell Houston open at Redstone Golf Club on March 30, 2012 in Humble, Texas. (Photo by Scott Halleran/Getty Images)
Shell Houston Open - Round One
HUMBLE, TX - MARCH 30: Louis Oosthuizen of South Africa watches his approach shot on the second hole during the completion of the weather-delayed first round of the Shell Houston open at Redstone Golf Club on March 30, 2012 in Humble, Texas. (Photo by Scott Halleran/Getty Images)
HUMBLE, TX - MARCH 30: Padraig Harrington of Ireland watches his tee shot on the ninth hole during the completion of the weather-delayed first round of the Shell Houston open at Redstone Golf Club on March 30, 2012 in Humble, Texas. (Photo by Scott Halleran/Getty Images)
Shell Houston Open - Round One
HUMBLE, TX - MARCH 30: Padraig Harrington of Ireland watches his tee shot on the ninth hole during the completion of the weather-delayed first round of the Shell Houston open at Redstone Golf Club on March 30, 2012 in Humble, Texas. (Photo by Scott Halleran/Getty Images)
HUMBLE, TX - MARCH 30: Louis Oosthuizen of South Africa watches his approach shot on the second hole during the completion of the weather-delayed first round of the Shell Houston open at Redstone Golf Club on March 30, 2012 in Humble, Texas. (Photo by Scott Halleran/Getty Images)
Shell Houston Open - Round One
HUMBLE, TX - MARCH 30: Louis Oosthuizen of South Africa watches his approach shot on the second hole during the completion of the weather-delayed first round of the Shell Houston open at Redstone Golf Club on March 30, 2012 in Humble, Texas. (Photo by Scott Halleran/Getty Images)

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