This page explains how Ava Fu (USATT# 89196)'s rating went from 1854 to 1842 at the Swan Friday O2000 Team League event from 6 Feb 2015. 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.