This page explains how Yun Peng (USATT# 76263)'s rating went from 1866 to 1846 at the MITBBS League event from 29 Aug 2013. 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.