This page explains how Prasith (sith) Bounkeo (USATT# 73584)'s rating went from 1824 to 1820 at the Minnesota Saturday Open event from 17 Mar 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.