This page explains how Yun Peng (USATT# 76263)'s rating went from 2023 to 2017 at the Swan Sunday League event from 4 Aug 2019. 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.