This page explains how Dmitri V Fomin (USATT# 2818)'s rating went from 1933 to 1930 at the MATTBC event from 21 Feb 2014. 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.