This page explains how Prasith (sith) Bounkeo (USATT# 73584)'s rating went from 1781 to 1767 at the Minnesota Saturday Open event from 1 Oct 2011. 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.