This page explains how Adam J. Jackovino (USATT# 53967)'s rating went from 1862 to 1852 at the St. Joseph Valley Open held on - 30 May 1999. The links below take you to pages that describe various aspects of the rating processor.

The rating processor goes through 4 passes in order. The links take you to pages that provide detailed explanations of the calculations during each of the 4 passes.