This page explains how Arun Selvaraj (USATT# 215418)'s rating went from 2120 to 2128 at the Boston TTC event from 4 Feb 2020. 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.