This page explains how Angie Tan (USATT# 87830)'s rating went from 2162 to 2152 at the ICC - Advanced League event from 20 Sep 2020. 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.