Greatest Day in Fantasy Football

What was the single greatest day a player scored in fantasy football? It is an interesting question, and unfortunately, due to incomplete box scores from times of yore, it might not be answerable.

After scouring through the data at Pro Football Reference, here's what I found:

  Rushing Receiving Return  
Player Team Date YDS TD YDS TD TD TOTAL
Billy Cannon HOU Dec 10, 1961 216 3 113 2 0 63.0 pts
Gale Sayers CHI Dec 12, 1965 113 4 89 1 1 56.2 pts
Dub Jones CLE Nov 25, 1951 116 4 80 2 0 55.6 pts
Clinton Portis DEN Dec 7, 2003 218 5 33 0 0 55.1 pts
Cookie Gilchrist BUF Dec 8, 1963 243 5 0 0 0 54.3 pts
Abner Haynes DAL Nov 26, 1961 158 4 84 1 0 54.2 pts
Cloyce Box DET Dec 3, 1950 0 0 302 4 0 54.2 pts
Jim Brown CLE Nov 19, 1961 237 4 52 0 0 52.9 pts
Shaun Alexander SEA Sept 29, 2002 139 4 92 1 0 52.9 pts
Jerry Rice SF Oct 14, 1990 0 0 225 5 0 52.5 pts
Jamaal Charles KC Dec 15, 2013 20 1 195 4 0 51.5 pts
Doug Martin TB Nov 4, 2012 251 4 21 0 0 51.2 pts
Jerry Butler BUF Sep 23, 1979 12 0 255 4 0 50.7 pts
Mike Anderson DEN Dec 3, 2000 251 4 5 0 0 49.6 pts
Adrian Peterson MIN Nov 4, 2007 296 3 19 0 0 49.5 pts

And possibly the greatest fantasy day in NFL history is incomplete.

Ernie Nevers (RB, K - Chicago Cardinals) on Nov 28th, 1929 vs. Chicago Bears rushed for 6 TDs and kicked 4 extra points. He missed two. Unfortunately, I can not find his total yards, but including the 42 yards just from his touchdowns, gives a minimum 44.2 pts

Read more about the Ernie Nevers story from the Chicago Tribune article: Nevers Again.

Scoring Note: 6 pts per touchdown, 1 pt per 10 yds rushing, 1 pt per 10 yds receiving. Most leagues have scoring for QBs, giving only 1 pt for 25 yds passing, and 4 pts a TD, so, for example, Roethlisberger who threw for 6 TDs and 522 yds would only net 44.9 pts for that monster day.