However, for quite some time, I’ve been thinking about this: if one could get a good approximation of the framing numbers just using Retrosheet pitch sequences, 20 years of catcher framing could be ...

Thanks to Retrosheet, we’ve collected game results and box scores going all the way back to 1871. We used that mountain of data to create an Elo-based rating system and predictive model for ...

This is a fun read from Tom Ruane of Retrosheet, a look at some quirky events in major league history that are difficult for software programs to understand and thus display accurate box scores.