An argument could be made that Tom Brady's 2007 season was the best single-season performance for a quarterback in NFL history. Other will argue that Drew Brees' 2011 performance was the best ever. Heck, some old-timers will argue that Dan Marino put up the best single-season performance in league history back in 1984. 

While I respect those opinions, what Peyton Manning did this season has been utterly ridiculous, and it has led to the best single-season performance in fantasy football history. Yes, history. 

5,000 passing yards. Check. 

50 touchdown passes. Check. 

25.6 fantasy points per outing. Check. 

38.1 points per game on offense. Check. 

3.5 touchdowns per game. Check. 

While we are crossing various accomplishments off Manning's "Nice List," think about this for a second. If Manning averaged 12 points per game, which represents his season low, he'd still be the 19th-ranked fantasy quarterback on the season. In reality, his floor is the ceiling of at least 13 starting quarterbacks in the National Football League. 

Of course, this is all fantasy based. There have been other circumstancs that have led to his success on the field. Less-than-stellar competition and a ridiculous group of receivers being two. With that said, it's hard to fault Manning for this, especially when looking at his success through a fantasy lens. 

If Manning has an average performance, by his standards, next week he will finish the season with 5,560 yards and 56 touchdowns. Let's just compare Manning's 2013 season with a few others who finished with comparable numbers in some statistics. 

Barring some sort of a struggle next week against the Oakland Raiders, Manning will finish the 2013 season with the best statistical numbers across the board in the table embedded abouve. This table represents the only quarterbacks to throw for 5,000-plus yards in NFL history. It could be said that Marino's 1984 season may be the best ever considering that he did it in a league that was completely different than it is today. With that said, Neil Lomax of the St. Louis Cardinals did put up over 4,600 passing yards. The amazing feat for Manning that season was that Dave Kreig finished second in the NFL with just 32 touchdown passes. Brees is currently second to Manning's 51 touchdowns with 35, but he's also thrown two more interceptions with 400- less yards. 

The only argument for a better season that what we have seen from Manning this season would be Tom Brady's 2007 campaign, in which the New England Patriots finished with a perfect 16-0 regular season record. New England averaged nearly 37 points per game, as Brady put up a ridiculous 6.25:1 TD/INT ratio. Manning is at just 5.1:1 right now. 

Brady also put up 390 fantasy points that season, the best ever for a quarterback. With just seven points next week against Oakland, a game Denver might need to wrap up home-field advantage, Manning will surpass that number. It must, however, be noted that the No. 2 fantasy quarterback from the 2007 season was Tony Romo,who finished nearly 100 points behind Brady. Currently, Brees is about 75 points behind Manning for the No. 2 slot this season. 

One other performance that might fly under the radar is what Aaron Rodgers did back in 2011 for the Green Bay Packers. He compiled a ridiculous 7.5:1 TD/INT ratio and a NFL record 122.5 quarterback rating that season. Unfortunately for Rodgers, he sat out the final game of the regular season against a horrible Detroit Lions defense because the then 14-1 Packers had nothing to play for. Matt Flynn, of all people, recorded six touchdown passes in Rodgers' stead. Oh, to think about how that season could have ended for the All-Pro quarterback. 

As it is, all the indicators are there to consider Manning's 2013 performance the best in fantasy football history. The closest rival to that feat would likely have to come in the form of the aforementioned 2007 season from Brady.