This page explains how Reginald Dulaca (USATT# 48053)'s rating went from 2107 to 2068 at the Schaumburg Open held on - 14 May 1994. 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.