This volume investigates the statistical performance of Major League Baseball players during the 1986 season to provide predictive analysis for the 1987 season. Seymour Siwoff and the Elias Sports Bureau utilize their proprietary database to offer a granular breakdown of player metrics, moving beyond traditional box score statistics to evaluate individual contributions to team success. The text serves as a framework for understanding the quantitative evolution of baseball strategy during the late 1980s.

Experts recognize this publication as a foundational document in the history of sabermetrics and sports data analysis. Readers frequently note the density of the statistical tables, which remain a primary reference for historians studying the 1986 baseball season.