This page explains how Alok Bopanna (USATT# 92994)'s rating went from 1450 to 1421 at the Minnesota Saturday Open event from 27 Oct 2012. 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.