Justin Rose matched the 36-hole track record at Torrey Pines with a round of 66 after his first round 63 Farmers Insurance Open, second-round leaderboard-15 J Rose (Eng, SC); -12 H Matsuyama (Jpn, SC); -10 R Palmer (USA, NC), J Rahm (Spa, SC), B Horschel (USA, SC) Other selected: -8 R McIlroy (NI, NC); -7 R Knox (Sco, SC), J Spieth (US, SC); -5 D Willett (Eng, SC), M Laird (Sco, NC); -4 T Woods (US, NC) Players play North Course (NC) and South Course (NC) on alternate days for the first two rounds; all play South Course in round three
World number one, Justin Rose opened a three-headed lead after the second round of the Farmers Insurance Open.
The Englishman played on the South Course at Torrey Pines in California hit a six-in-a-row 66 to overtake Jon Rahm at the top of the standings.
The Japanese Hideki Matsuyama is in second place while Rahm & # 39; s disappointing 72 meant that the Spaniard fell to third place.
Northern Ireland Rory McIlroy came into battle with a seven-under-par 65 on the North Course.
McIlroy is still seven shots adrift of Rose.
Tiger Woods, also played the North Course and returned to the scene of his last major victory in 2008, shot a second two-under-par 70.
Rose struck seven birdies to add to his opening round 63 and meant he was the 36-hole matched tournament record.
"The work was done today," Rose said.
 003] "It is very nice to go there and make a positive round and feel good through it, I hope to continue building it on weekends."
Just like McIlroy, Scotland's Martin Laird also climbed the rankings with an impressive lap. His six-under 66 lifted him 81 places – although he still has 10 shots left leader Rose – where he is right with the Danny Willett of England.
compatriot Russell Knox walked around in 70 after an opening -68, leaving him seven in total.