The win moved Wilson up 78 places to No. 72 in this week's official World Golf Rankings. Lehman, who would have moved into the top 10 in automatic points for his own Ryder Cup team with a win, climbed 18 places in the World Rankings to No. 35.
Tiger Woods, who will try to capture his second major of the season this week at the PGA Championship, remained in first. Phil Mickelson, the reigning PGA Champion, stayed in second, but there was a shift in the top five.
Jim Furyk and Vijay Singh switched places from last week with Furyk jumping to third and the three-time major champion falling to fourth. Retief Goosen rounded out the top five.
Adam Scott, Ernie Els, U.S. Open winner Geoff Ogilvy, Sergio Garcia and David Howell completed the top 10 for the second consecutive week.
Luke Donald, David Toms, Chris DiMarco, Trevor Immelman and Colin Montgomerie also held their positions from the previous week.
Jose Maria Olazabal stayed in 16th place, but Padraig Harrington and Henrik Stenson swapped rankings. The Irishman came in 17th while Stenson dipped to No. 18. Tim Clark and Darren Clarke finished 19th and 20th.