An Introduction to the Science of Baseball Statistics by Gabriel B. Costa, Michael R. Huber and John T. Saccoman


This introduction to the basics of sabermetrics analysis explains concepts including normalisation, peak versus career performance, linear weights and runs created, as well as popular calculations like OPS (On-base plus slugging), WHIP (walks and hits per inning pitched), PF (park factor)  and other increasingly used statistics.

Understanding Sabermetrics