This page explains how Henry C.H. Wu (USATT# 928279)'s rating went from 1878 to 1873 at the Swan Sunday League event from 24 Nov 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.