This past offseason, I found an xBABIP equation which correlated better than just BABIP when looking at season 1 to season 2 values . By using the the new Inside Edge data and player speed score, I kept the process simple yet accurate. I have tweeted out the results a few times during the season, but it is time for another full updated list.
The Inside Edge data tracks the normal bunts, grounders, fly balls and line drives. In addition to the four groups, they classify the batted ball into weak, medium and hard contract. For the xBABIP equation, I looked at all the line drives and all the hard hit fly balls and grounders. Additionally, speed is a component of getting on base so Bill James’s Speed Score is also added into the calculation.