This page explains how Shishir Mahajan (USATT# 197089)'s rating went from 1924 to 1915 at the Boston TTC event from 28 Feb 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.