This page explains how Constantin Okrainets (USATT# 17885)'s rating went from 1989 to 1985 at the NJTTC Thursday Adv League event from 7 Jun 2018. 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.