You already knew Jamaal Charles had a good day against the Oakland Raiders on Sunday. The Kansas City Chiefs star racked up more than 50 points thanks to four receiving touchdowns, 195 receiving yards and one rushing score.

But just how good was Charles' day, from a fantasy perspective?

According to ESPN's Tristan H. Cockcroft, Charles' monster performance put him in the top 10 for players since the NFL started using detailed box scores in 1960. Of course, back then there was not fantasy football, but point totals can be tallied by combing through box scores.

The top mark belongs to Gale Sayers, who scored six touchdowns (four receiving, one rushing and one on a punt return) in Week 13 of the 1965 season. Sayers, a rookie, would have scored 55 points for his fantasy owners that day.

Clinton Portis' five-touchdown, 218 yard performance against the Chiefs in Week 14 of the 2003 season is second followed by Jim Brown's 242 yard and four touchdown day on Week 10 of the 1961 season.

Making Charles' performance even more epic is that he did it in the fantasy playoffs, essentially willing his owners to victory. Grantland's Bill Barnwell notes Charles' game was the third best in the fantasy playoffs of the last 53 years.

Portis' game was also in the fantasy playoffs, as was Corey Dillon's four-touchdown, 246-yard performance in Week 15 of the 1997 season.

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