This page explains how Slawomir Gacki (USATT# 86188)'s rating went from 2025 to 1981 at the Newgy Ohio Open held on - 11 Sep 2015. 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.