La Jolla, CA (SportsNetwork.com) - Jordan Spieth fired a 9-under 63 on Friday and that helped him soar into the lead after 36 holes of the Farmers Insurance Open.
Spieth, who played alongside seven-time champion Tiger Woods, ended 36 holes one stroke clear of the field at 10-under-par 134.
Former British Open champion Stewart Cink carded a 1-under 71. He was the first-round leader, but dipped into second place at minus-9.
Nicolas Colsaerts posted a 5-under 67 on the more difficult South Course at Torrey Pines, and he climbed into third place at 8-under-par 136.
Billy Horschel had a 67 on the North Course and that helped him move into a share of fourth at minus-7. He was joined there by Marc Leishman, who carded a 1-under 71 on Friday.
Gary Woodland (73), Pat Perez (71), Erik Compton (69), Russell Knox (67) and Morgan Hoffmann (66) share sixth place at 6-under-par 138.
Woods, the defending champion, managed a 1-under 71 and finished two rounds tied for 50th at 1-under-par 143.
Phil Mickelson, a two-time winner of this event, stumbled to a 1-over 73 and he dipped into a share of 32nd at minus-2
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