This page explains how Craig S. Sental (USATT# 9891)'s rating went from 1610 to 1587 at the Westfield December Open held on - 11 Dec 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.