This page explains how Boliang Meng (USATT# 219976)'s rating went from 1454 to 1430 at the VTTC weekly league event from 26 Oct 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.