This page explains how Jirui Wen (USATT# 197216)'s rating went from 1971 to 1942 at the Swan Sunday League event from 5 Aug 2018. 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.