The Fedex Cup champion moved from tied-38th to tied-fourth to challenge for victory at Mission Hills Golf Club but after he missed a 20-foot putt on the final hole to record the European Tour's first-ever round of 59, Snedeker admitted that nerves had got the better of him.
Snedeker said: "I definitely had some nerves going, which is good. I just kept telling myself to give it a chance - you don't have that putt too often in your life so when you do, you've got to give it a good chance of going in.
"I hit a great putt and it just stinks not doing it, but still it's a great round and I got back in the golf tournament."
The world number nine hit 10 birdies and an eagle during his 12-under-par round of 60.