This page explains how Zekun Zhao (USATT# 278804)'s rating went from 1118 to 1117 at the Swan Sunday League event from 12 May 2024. 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.