This page explains how Mingyan Zhang (USATT# 219649)'s rating went from 1718 to 1712 at the Spttc Saturday Night League event from 27 Aug 2022. 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.