This page explains how Rachel Jiayu Sung (USATT# 82232)'s rating went from 2422 to 2425 at the Swan Sunday League event from 17 Feb 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.