Underlying data based on ZiPS Rest of Season data from FanGraphs.Point Shares – Inspired by Bill James’ Win Shares, these represent the estimated difference in an average team’s points if they were to substitute a given player for the average player at his position. For more information, see here.
ZiPS – ZiPS is a projection system written by Dan Szymborski to project performance in individual baseball players. Dan’s work can be found on Baseball Think Factory. The ZiPS stats can be downloaded for free on the site.
All Pos – All eligible positions for 2009. Based generally on 20 game eligibility.
Pos – This is the position that was used for their Point Share rankings. This is the position where the player is judged most valuable. The order of most valuable to least valuable for positions is: C, SS, 2B, 3B, OF, 1B, DH.