This page explains how Ronald Yu (USATT# 32315)'s rating went from 1731 to 1721 at the Grace Lin TT Club Open held on - 5 Jun 2011. 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.