Among those players whose chance of victory were swept away with the wind and rain were Paul Casey ( 78 ) , Pablo Larrazabal ( 76 ) , Masters champion Charl Schwartzel ( 75 ) , defending champion Louis Oosthuizen ( 74 ) and tournament favorite Rory McIlory ( 74 ) . Darren Clarke leads British Open by one shot after carding a one-under 69 . The American is tied with Phil Mickelson at five under, while Rory McIlroy and Graeme McDowell are two shots behind in the top five. Ricky Fowler also carded a 68 and lies joint third with Dane Thomas Bjorn .
Darren Clarke leads British Open by one shot after carding a one-under 69 . The American is tied with Phil Mickelson at five under, while Rory McIlroy and Graeme McDowell are two shots behind in the top five. Ricky Fowler also carded a 68 and lies joint third with Dane Thomas Bjorn .