Tiger Woods takes control of the Northwestern Mutual World Challenge at Sherwood Country Club in Thousand Oaks in California. Tiger Woods / Getty Images Tiger shot a second round -10 under par 62 to top the leaderboard in the Northwestern Mutual World Challenge, with a tournament score of -11 under par, a two shot lead. He was not happy with his warm up, but produced the goods when it mattered; "It was good today, it was the first swing I think I made, even during warm-up, that felt really good. And I tried to keep that feeling the rest of the day, and I did. I hit a lot of good shots after that." Tiger and Nelson: Tiger was informed of Nelson's passing before he finished the opening round of the Northwestern Mutual World Challenge, and said he found it hard to imagine that the man could emerge from 27 years of imprisonment without any hatred; "I don't think any of us probably here could have survived that and come out as humble and as dignified as he did. To lead an entire nation and to basically love the world when he came out, I think that's a testament to his will and his spirit and who he was. That time frame when he came out of prison, the country could have fallen apart. It could have gone a lot of different ways, and he led it to where it's at now, and the world is going to miss him." Ernie, Nelson and Tiger met with Nelson Mandela ahead of the 2003 Presidents Cup/ PGA Tour In second place at Thousand Oaks is first round leader Zach Johnson, a second round of -4 under par 68 gives him his tournament total of -9 under par. Matt Kuchar is in third place at -8 under par, these three are well clear of the field now. Next best is G-Mac at -5 under par, he played along side Tiger and had this to say afterwards; "It was a clinic, I enjoyed that, it was cool to see that kind of golf. He was under control, he hit it down the middle of every fairway. He didn't have that kind of violence with his speed through the ball." Matt agreed with Graeme's assessment of Tiger; "Amazing what Tiger did out there. It's just some incredible golf. I kind of felt sorry for Graeme McDowell. I saw he posted a 5-under-par round, and it must have felt like it was 2 or 3 over. It's tough when you're paired with a guy like that. It makes you feel like you're not doing much. But the rest of us just go about our business."