RISP column shows the number of standard deviations (std) above or below league average hitting with Runners In Scoring Position. RC column shows std above or below league average according to the Runs Created formula described here.
RISP
RC
SLG
TB/H
HR
SB
Age
-0.88
1.25
0.482
1.70
21
16
29
The line graph below shows daily WAA and Batting Average for reference. Fluctuation in batting average decreases as a season progresses. BA for pitchers is batting average against.