wOBA

Refer to my article on wOBA from Sabermetrics 101 for more in-depth explanation.

wOBA is a stat for evaluating hitter performance based on Linear Weights. It is scaled so the league average wOBA is equal to the league average OBP. From this scaling, we get the wOBA Scale, a constant used to convert wOBA (when compared to average) back to run value.

wOBA formula

$$\text{wOBA}=\frac{.699\cdot \text{uBB}+.730\cdot \text{HBP}+.895\cdot \text{1B}+1.274\cdot \text{2B}+1.615\cdot \text{3B}+2.084\cdot \text{HR}}{\text{AB}+\text{BB}-\text{IBB}+\text{SF}+\text{HBP}}$$