Mickelson grabs golf history, equaling record-low 63

Phil Mickelson grabbed a piece of golf history at the British Open on Thursday, capturing a share of the record for the lowest score in a major championship -- and coming within fractions of an inch of taking the record outright.

Aided by birdies on 10, 14, 16 and 17 on Royal Troon's dangerous back nine, Mickelson posted a final score of 63, equaling the record low for majors.

He had a curling 15-foot putt for birdie on 18 that would have given him a 62, but the ball circled the hole and then came to rest just outside it.