This page explains how Richard Robins (USATT# 52803)'s rating went from 1595 to 1557 at the January Westfield Open held on - 18 Jan 1998. 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.