GB Ground Ball (excludes bunts)
FB Fly Ball (does not include line drives)
LD Line Drives
Thanks to the tremendous work at Retrosheet.org in addition to general play-by-play info such as 4-3. We also have info on where the ball was hit and with what trajectory. We have utilized this info when possible. See our Data Coverage Page for a full report on how much and for when we have this data. Please let us know if you have questions.