This page explains how Guanlun Xu (USATT# 218222)'s rating went from 1341 to 1364 at the Boston TTC Div.B event from 4 Dec 2017. 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.