This page explains how Guanlun Xu (USATT# 218222)'s rating went from 988 to 1037 at the Boston TTC Div.B event from 9 Sep 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.