Of all the records Peyton Manning is laying waste to through the first five weeks of this season -- 20 passing touchdowns, 1,884 passing yards, 230 points -- it is perhaps this number that best defines how dominant he and the Denver Broncos have been: minus-28.

That's how many points Denver is favored by over the Jacksonville Jaguars in Week 6 opening lines posted by the Las Vegas Hotel.

According to The Gold Sheet, a sports-betting publication that has been tracking point spreads since the 1950s, that number ties the highest spread of all time, set by the Baltimore Colts over the expansion Atlanta Falcons in 1966. The Falcons covered. It is the highest since the AFL-NFL merger in 1970.

"The Jaguars are just so awful, and the interest in betting on the Broncos has been pretty consistent," Jay Kornegay, who runs the sports book at the Las Vegas Hotel, said Sunday night. "There's a group of us here who put together the lines for each week, and it took us 10-15 minutes to debate what this number would be. Some folks didn't feel that good about making history with this."

The Broncos have become the kind of team that recreational bettors can't stay away from. They're scoring 46 points per game, which is 16 points more than the second-best team in the league, the Dallas Cowboys. They are winning games by an average of 18 points, and other than against the Cowboys this past Sunday, they've covered not just the point spread, but the over in every game.