This view shows a WAA record for the selected player along with bi weekly snapshots of their progress throughout the season.  End of season views will display a WAR record and for hitters and Extended Stats record.

Extended Stats consist of:

• RISP – number of standard deviations above or below league average with respect to scoring runs with runners in scoring position.
• RC – number of standard deviations above or below league average based upon Runs Created based on hits, walks, and total bases.
• SLG – Standard slugging percentage which is total bases divided by at bats.
• TB/H – Total bases divided by hits.  An historical average for this is almost exactly 3/2 or 1.5.
• HR – Home Runs.  For pitchers it’s home runs given up.
• SB – Stolen bases which is an indicator of speed and base running ability.

WAR records consist of:

• WAR – Wins Above Replacement as calculated by baseball-reference.com
• oWAR – offensive WAR component, not applicable for pitchers.
• dWAR – defensive WAR component, not applicable for pitchers.

Somehow oWAR and dWAR combine to make WAR.  The purpose of showing WAR is to provide context and comparison with WAA.   Mostly the two systems agree but sometimes they don’t.  The WAA model only counts runs and does not have a defensive component like WAR.  It is not possible to count a run that should have scored but didn’t or a run that scored but shouldn’t have.  MLB official scorekeepers have a difficult time simply calling errors and keeping track of unearned runs.

There are ways to statistically estimate defense and dWAR seems like a decent indicator but it’s highly error prone and subjective.