This page explains how Constantin Okrainets (USATT# 17885)'s rating went from 1830 to 1811 at the NJTTC Super League event from 25 Jan 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.