This page explains how Constantin Okrainets (USATT# 17885)'s rating went from 2054 to 2045 at the NJTTC Monday League event from 16 Oct 2017. 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.