After registering a scintillating 63 on Thursday, British Open leader Phil Mickelson has set a Royal Troon course record with a 10-under total of 132 after 36 holes. Tune in or stream final round coverage this weekend to see if Lefty can maintain his hot streak and claim the coveted Claret Jug. Officially called The Open Championship, the only major not held in the United States has visited Scotland’s Royal Troon on eight occasions dating back to 1923. This will be the first visit since 2004. Mickelson won the event at Muirfield in 2013.