This page explains how Winnie Yeung (USATT# 96338)'s rating went from 1870 to 1872 at the San Francisco Bay Area CLC event from 16 Oct 2022. 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.