This page explains how Kallista Liu (USATT# 94975)'s rating went from 1809 to 1664 at the HCTT Tuesday Night League event from 23 Aug 2016. 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.