Halftime at the U.S. Amateur final

SAN FRANCISCO--It's been a pretty close match through the morning 18 between__Michael Thompson__ and __Colt Knost__in the final of the 107th U.S. Amateur Championship. Knost has a 1-up lead at Olympic Club, having made one birdie and three bogeys. (Thompson has three birdies, five bogeys and a double bogey.)

"I still haven't gotten the putter warmed up," Knost said before grabbing lunch. "I didn't make a birdie until the last hole. i didn't hit it very good, especially in that stretch of [holes] 7-9. But I feel like he made a few putts on me or I'd have a bigger lead."

Here's Thompson's early reaction: "I started off poor, but I got into a groove there after a while. I just have to trust myself more. I just have to keep shooting for the middle of the greens and make a few putts."

Thompson also acknowledged Knost's penchant for grinding. "He's scrambling man. He's getting up and down from everywhere."

Click here for their full scorecards.