This page explains how Sarah Shuangxia Zhu (USATT# 268233)'s rating went from 1318 to 1283 at the Swan Sunday League event from 28 Aug 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.