This page explains how Xinping Zhang (USATT# 1176560)'s rating went from 1857 to 1856 at the ASLT League event from 2 Jun 2023. 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.