This page explains how Rachel Purwar (USATT# 1168381)'s rating went from 1686 to 1536 at the 888 League event from 3 Oct 2021. 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.