These are our updated dynasty rankings as of September 01. Unlike our seasonal rankings, where we have an explanation next to each players rankings, the dynasty section just has a list.  

A star next a player indicates that he is being ranked in that spot due to age concerns or past injury concerns. 

For explanations on players, check out our seasonal running back rankings

1) Chris Johnson (Tennessee Titans)

2) Ray Rice (Baltimore Ravens)

3) Adrian Peterson (Minnesota Vikings)

4) Maurice Jones-Drew (Jacksonville Jaguars)

5) Steven Jackson (St. Louis Rams)

6) Frank Gore (San Francisco 49ers)

7) Michael Turner (Atlanta Falcons)*

8) Ryan Grant (Green Bay Packers)

9) Shonn Greene (New York Jets)

10) DeAngelo Williams (Carolina Panthers)

11) Knowshon Moreno (Denver Broncos)

12) Rashard Mendenhall (Pittsburgh Steelers)

13) Jonathan Stewart (Carolina Panthers)

14) C.J. Spiller (Buffalo Bills)

15) Chris Wells (Arizona Cardinals)

16) Ryan Mathews (San Diego Chargers)

17) Felix Jones (Dallas Cowboys)

18) Cedric Benson (Cincinnati Bengals)*

19) Jamaal Charles (Kansas City Chiefs)

20) Pierre Thomas (New Orleans Saints)

21) Ronnie Brown (Miami Dolphins)

22) Joseph Addai (Indianapolis Colts)

23) Jahvid Best (Detroit Lions)

24) Ahmad Bradshaw (New York Giants)

25) Matt Forte (Chicago Bears)

26) Donald Brown (Indianapolis Colts)

27) Montario Hardesty (Cleveland Browns)

28) LeSean McCoy (Philadelphia Eagles)

29) Michael Bush (Oakland Raiders)

30) Marion Barber (Dallas Cowboys)

31) Brandon Jacobs (New York Giants)*

32) Ricky Williams (Miami Dolphins)*

33) Arian Foster (Houston Texans)

34) Justin Forsett (Seattle Seahawks)

35) Cadillac Williams (Tampa Bay Buccaneers)*

36) Clinton Portis (Washington Redskins)*

37) Willis McGahee (Baltimore Ravens)*

38) Fred Jackson (Buffalo Bills)

39) Reggie Bush (New Orleans Saints)

40) Bernard Scott (Cincinnati Bengals)

*notes age concerns or career carry concerns or past injury concerns