DENVER --Raiders cornerback Mike Jenkins felt he had good coverage on several plays Monday night.

Good is rarely good enough against Broncos quarterback Peyton Manning, though.

Manning shredded the Oakland defense, completing 32 of 37 passes for 374 yards and three touchdowns in the Raiders' 37-21 loss.

"I think a lot of us were trying to do too much just to stop him," Jenkins said. "He's a great quarterback, made great throws. Any inch or mistake that he sees, he's going to put the ball there and find that hole."

Broncos receivers Demaryius Thomas (10 catches for 94 yards), Eric Decker (eight catches for 133 yards) and Wes Welker (seven catches for 84 yards) all had big nights. The Raiders had some success defending the pass against Indianapolis and Jacksonville during the first two weeks, but facing Manning is a task unlike any other.

"It was pretty much Manning, just putting the ball in the right spot," Jenkins said. "We were covering these guys, we were on them. Peyton just squeezed the ball in with a great throw."

Often, Jenkins said, a defensive back can do just about everything right, but still get beat against Manning.

"I had a play on Decker where I was on him like a shadow," Jenkins said. "I actually felt the ball go across my fingers and the guy caught the ball and turned up on me. Like I said, it's an inch away. The guy (Manning) is just awesome. I've never seen anything like him.

"It is very frustrating for you to be in the right spot and he still squeezes the ball in for a great throw. There's not too much you can do about that. Most games you play, that's your ball. But it's Peyton Manning."

The Raiders came into the game knowing exactly how to defend Manning.

"You've got to get to 18," Raiders safety Charles Woodson said of Manning. "If you don't get to 18, you're going to have a long night, like we had tonight."

During the first two weeks, the Raiders racked up nine sacks. On Monday, they got to Manning just once. With solid protection most of the night, Manning sat back and carved up the Raiders.

"He picked up the open guys like he always does and we didn't get off the field when we needed to," Woodson said. "He's great at recognizing things and he was able to recognize some things and get the ball to the guys that he needed to. That's Peyton Manning. That's what he does."

Even Raiders head coach Dennis Allen credited the Broncos, brushing off the notion that the Raiders had too many breakdowns in the secondary.

"There was a lot of good execution on their part," Allen said.

Regardless, Jenkins said the Raiders need to be better than they were on Monday, and he hopes they can learn from this game.

"This is one of those situations where it hurts, but at the same time you have to look at yourself in the mirror and just be real with yourself, come back the next day and watch film on it and see where you can better yourself," Jenkins said. "I feel like if you can better yourself off Peyton Manning then you'll be prepared for anybody else in the league."