2015 Valero Texas Open

SAN ANTONIO, TX - MARCH 26: Martin Kaymer of Germany tees off on the 16th hole during round one of the Valero Texas Open at TPC San Antonio AT&T Oaks Course on March 26, 2015 in San Antonio, Texas. (Photo by Christian Petersen/Getty Images)

SAN ANTONIO, TX - MARCH 26: Matt Kuchar putts on the 15th hole during round one of the Valero Texas Open at TPC San Antonio AT&T Oaks Course on March 26, 2015 in San Antonio, Texas. (Photo by Christian Petersen/Getty Images)

SAN ANTONIO, TX - MARCH 26: Jason Dufner tees off on the second hole during round one of the Valero Texas Open at TPC San Antonio AT&T Oaks Course on March 26, 2015 in San Antonio, Texas. (Photo by Marianna Massey/Getty Images)

SAN ANTONIO, TX - MARCH 26: Pat Perez reacts to his putt on the eighth hole during round one of the Valero Texas Open at TPC San Antonio AT&T Oaks Course on March 26, 2015 in San Antonio, Texas. (Photo by Marianna Massey/Getty Images)

SAN ANTONIO, TX - MARCH 26: Russell Knox reacts after making his putt on the eighth hole during round one of the Valero Texas Open at TPC San Antonio AT&T Oaks Course on March 26, 2015 in San Antonio, Texas. (Photo by Marianna Massey/Getty Images)

SAN ANTONIO, TX - MARCH 26: Nick Watney jokes about his cold hands and weather on the second tee during round one of the Valero Texas Open at TPC San Antonio AT&T Oaks Course on March 26, 2015 in San Antonio, Texas. (Photo by Marianna Massey/Getty Images)

SAN ANTONIO, TX - MARCH 26: Retief Goosen of South Africa walks onto the 18th hole during round one of the Valero Texas Open at TPC San Antonio AT&T Oaks Course on March 26, 2015 in San Antonio, Texas. (Photo by Marianna Massey/Getty Images)

SAN ANTONIO, TX - MARCH 26: Jordan Spieth plays his third shot on the second hole as Jimmy Walker looks on during round one of the Valero Texas Open at TPC San Antonio AT&T Oaks Course on March 26, 2015 in San Antonio, Texas. (Photo by Christian Petersen/Getty Images)

SAN ANTONIO, TX - MARCH 26: Aaron Baddeley of Australia takes his second shot on the eighth hole during round one of the Valero Texas Open at TPC San Antonio AT&T Oaks Course on March 26, 2015 in San Antonio, Texas. (Photo by Christian Petersen/Getty Images)

SAN ANTONIO, TX - MARCH 26: The wind blows the flag on the seventh hole during round one of the Valero Texas Open at TPC San Antonio AT&T Oaks Course on March 26, 2015 in San Antonio, Texas. (Photo by Christian Petersen/Getty Images)

SAN ANTONIO, TX - MARCH 26: THe ninth hole yardage sign is knocked over by high winds during round one of the Valero Texas Open at TPC San Antonio AT&T Oaks Course on March 26, 2015 in San Antonio, Texas. (Photo by Christian Petersen/Getty Images)

SAN ANTONIO, TX - MARCH 26: Phil Mickelson tees off on the fourth hole during round one of the Valero Texas Open at TPC San Antonio AT&T Oaks Course on March 26, 2015 in San Antonio, Texas. (Photo by Christian Petersen/Getty Images)

SAN ANTONIO, TX - MARCH 27: Phil Mickelson takes his second shot on the 10th hole during round two of the Valero Texas Open at TPC San Antonio AT&T Oaks Course on March 27, 2015 in San Antonio, Texas. (Photo by Marianna Massey/Getty Images)

SAN ANTONIO, TX - MARCH 27: Phil Mickelson reacts to a missed putt on the 16th hole during round two of the Valero Texas Open at TPC San Antonio AT&T Oaks Course on March 27, 2015 in San Antonio, Texas. (Photo by Marianna Massey/Getty Images)

SAN ANTONIO, TX - MARCH 27: Phil Mickelson smiles at the crowd after his second shot on the 18th hole during round two of the Valero Texas Open at TPC San Antonio AT&T Oaks Course on March 27, 2015 in San Antonio, Texas. (Photo by Marianna Massey/Getty Images)

SAN ANTONIO, TX - MARCH 27: Jordan Spieth reacts to a missed putt on the 13th hole during round two of the Valero Texas Open at TPC San Antonio AT&T Oaks Course on March 27, 2015 in San Antonio, Texas. (Photo by Marianna Massey/Getty Images)

SAN ANTONIO, TX - MARCH 27: Jordan Spieth hits out of the bunker on the 14th hole during round two of the Valero Texas Open at TPC San Antonio AT&T Oaks Course on March 27, 2015 in San Antonio, Texas. (Photo by Marianna Massey/Getty Images)

SAN ANTONIO, TX - MARCH 27: Jordan Spieth lines up a putt on the 12th hole during round two of the Valero Texas Open at TPC San Antonio AT&T Oaks Course on March 27, 2015 in San Antonio, Texas. (Photo by Marianna Massey/Getty Images)

SAN ANTONIO, TX - MARCH 27: Aaron Baddeley of Australia hits out of the rough on the ninth hole during round two of the Valero Texas Open at TPC San Antonio AT&T Oaks Course on March 27, 2015 in San Antonio, Texas. (Photo by Christian Petersen/Getty Images)

SAN ANTONIO, TX - MARCH 27: Michael Thompson tees off on the 17th hole during round two of the Valero Texas Open at TPC San Antonio AT&T Oaks Course on March 27, 2015 in San Antonio, Texas. (Photo by Christian Petersen/Getty Images)

SAN ANTONIO, TX - MARCH 27: Jimmy Walker takes his third shot on the eighth hole during round two of the Valero Texas Open at TPC San Antonio AT&T Oaks Course on March 27, 2015 in San Antonio, Texas. (Photo by Christian Petersen/Getty Images)

SAN ANTONIO, TX - MARCH 27: Jimmy Walker lines up a putt on the ninth hole during round two of the Valero Texas Open at TPC San Antonio AT&T Oaks Course on March 27, 2015 in San Antonio, Texas. (Photo by Christian Petersen/Getty Images)

SAN ANTONIO, TX - MARCH 28: Kevin Na prepares to tees off on the second hole during round three of the Valero Texas Open at TPC San Antonio AT&T Oaks Course on March 28, 2015 in San Antonio, Texas. (Photo by Marianna Massey/Getty Images)

SAN ANTONIO, TX - MARCH 28: Billy Horschel tees off on the second hole during round three of the Valero Texas Open at TPC San Antonio AT&T Oaks Course on March 28, 2015 in San Antonio, Texas. (Photo by Marianna Massey/Getty Images)

SAN ANTONIO, TX - MARCH 28: Jordan Spieth reacts to Brendan Steele chipping in on the sixth green during round three of the Valero Texas Open at TPC San Antonio AT&T Oaks Course on March 28, 2015 in San Antonio, Texas. (Photo by Christian Petersen/Getty Images)

SAN ANTONIO, TX - MARCH 28: Jordan Spieth walks onto the sixth hole during round three of the Valero Texas Open at TPC San Antonio AT&T Oaks Course on March 28, 2015 in San Antonio, Texas. (Photo by Christian Petersen/Getty Images)

SAN ANTONIO, TX - MARCH 28: Brendan Steele tees off on the seventh hole during round three of the Valero Texas Open at TPC San Antonio AT&T Oaks Course on March 28, 2015 in San Antonio, Texas. (Photo by Christian Petersen/Getty Images)

SAN ANTONIO, TX - MARCH 28: Jimmy Walker sits on the third tee during round three of the Valero Texas Open at TPC San Antonio AT&T Oaks Course on March 28, 2015 in San Antonio, Texas. (Photo by Christian Petersen/Getty Images)

SAN ANTONIO, TX - MARCH 28: Phil Mickelson tees off on the first hole during round three of the Valero Texas Open at TPC San Antonio AT&T Oaks Course on March 28, 2015 in San Antonio, Texas. (Photo by Christian Petersen/Getty Images)

SAN ANTONIO, TX - MARCH 28: Phil Mickelson reacts to a missed putt on the sixth hole during round three of the Valero Texas Open at TPC San Antonio AT&T Oaks Course on March 28, 2015 in San Antonio, Texas. (Photo by Christian Petersen/Getty Images)

SAN ANTONIO, TX - MARCH 28: Brendon Todd tees off on the first hole during round three of the Valero Texas Open at TPC San Antonio AT&T Oaks Course on March 28, 2015 in San Antonio, Texas. (Photo by Christian Petersen/Getty Images)

SAN ANTONIO, TX - MARCH 28: Robert Garrigus takes his third shot on the 18th hole during round three of the Valero Texas Open at TPC San Antonio AT&T Oaks Course on March 28, 2015 in San Antonio, Texas. (Photo by Christian Petersen/Getty Images)

SAN ANTONIO, TX - MARCH 28: Aaron Baddeley of Australia takes his second shot on the first hole during round three of the Valero Texas Open at TPC San Antonio AT&T Oaks Course on March 28, 2015 in San Antonio, Texas. (Photo by Christian Petersen/Getty Images)

SAN ANTONIO, TX - MARCH 28: Charley Hoffman lines up a putt on the first hole during round three of the Valero Texas Open at TPC San Antonio AT&T Oaks Course on March 28, 2015 in San Antonio, Texas. (Photo by Christian Petersen/Getty Images)

SAN ANTONIO, TX - MARCH 28: Scott Pinckney putts on the 18th green during round three of the Valero Texas Open at TPC San Antonio AT&T Oaks Course on March 28, 2015 in San Antonio, Texas. (Photo by Christian Petersen/Getty Images)

SAN ANTONIO, TX - MARCH 29: Phil Mickelson tees off on the first hole during the final round of the Valero Texas Open at TPC San Antonio AT&T Oaks Course on March 29, 2015 in San Antonio, Texas. (Photo by Marianna Massey/Getty Images)

SAN ANTONIO, TX - MARCH 29: Phil Mickelson tees off on the second hole during the final round of the Valero Texas Open at TPC San Antonio AT&T Oaks Course on March 29, 2015 in San Antonio, Texas. (Photo by Christian Petersen/Getty Images)

SAN ANTONIO, TX - MARCH 29: Billy Horschel tees off on the eighth hole during the final round of the Valero Texas Open at TPC San Antonio AT&T Oaks Course on March 29, 2015 in San Antonio, Texas. (Photo by Christian Petersen/Getty Images)

SAN ANTONIO, TX - MARCH 29: Jordan Spieth tees off on the sixth hole during the final round of the Valero Texas Open at TPC San Antonio AT&T Oaks Course on March 29, 2015 in San Antonio, Texas. (Photo by Christian Petersen/Getty Images)

SAN ANTONIO, TX - MARCH 29: Jordan Spieth hits out of the bunker on the sixth hole during the final round of the Valero Texas Open at TPC San Antonio AT&T Oaks Course on March 29, 2015 in San Antonio, Texas. (Photo by Christian Petersen/Getty Images)

SAN ANTONIO, TX - MARCH 29: Jordan Spieth takes his shot out of the rough on the fourth hole during the final round of the Valero Texas Open at TPC San Antonio AT&T Oaks Course on March 29, 2015 in San Antonio, Texas. (Photo by Christian Petersen/Getty Images)

SAN ANTONIO, TX - MARCH 29: Jimmy Walker celebrates after making his putt on the 18th hole to win the final round of the Valero Texas Open at TPC San Antonio AT&T Oaks Course on March 29, 2015 in San Antonio, Texas. (Photo by Marianna Massey/Getty Images)

SAN ANTONIO, TX - MARCH 29: Jimmy Walker shakes hands with Jordan Spieth and Billy Horschel after winning the Valero Texas Open in the final round at TPC San Antonio AT&T Oaks Course on March 29, 2015 in San Antonio, Texas. (Photo by Christian Petersen/Getty Images)

SAN ANTONIO, TX - MARCH 29: Jimmy Walker celebrates after winning the Valero Texas Open in the final round at TPC San Antonio AT&T Oaks Course on March 29, 2015 in San Antonio, Texas. (Photo by Christian Petersen/Getty Images)

SAN ANTONIO, TX - MARCH 29: Jimmy Walker is hugged by his children Beckett and McLain after winning the Valero Texas Open in the final round at TPC San Antonio AT&T Oaks Course on March 29, 2015 in San Antonio, Texas. (Photo by Christian Petersen/Getty Images)

SAN ANTONIO, TX - MARCH 29: Jimmy Walker high fives Billy Horschel after a birdie putt on the 17th green during the final round of the Valero Texas Open at TPC San Antonio AT&T Oaks Course on March 29, 2015 in San Antonio, Texas. (Photo by Christian Petersen/Getty Images)

SAN ANTONIO, TX - MARCH 29: Jimmy Walker high fives fans after a birdie putt on the 17th green during the final round of the Valero Texas Open at TPC San Antonio AT&T Oaks Course on March 29, 2015 in San Antonio, Texas. (Photo by Christian Petersen/Getty Images)

SAN ANTONIO, TX - MARCH 29: Jimmy Walker approaches the 18th green during the final round of the Valero Texas Open at TPC San Antonio AT&T Oaks Course on March 29, 2015 in San Antonio, Texas. (Photo by Christian Petersen/Getty Images)

SAN ANTONIO, TX - MARCH 29: Jimmy Walker poses with the Valero Texas Open trophy after winning in the final round at TPC San Antonio AT&T Oaks Course on March 29, 2015 in San Antonio, Texas. (Photo by Christian Petersen/Getty Images)

SAN ANTONIO, TX - MARCH 29: Jimmy Walker poses with the Valero Texas Open trophy after winning in the final round at TPC San Antonio AT&T Oaks Course on March 29, 2015 in San Antonio, Texas. (Photo by Christian Petersen/Getty Images)