This page explains how JIM TARKOWSKI (USATT# 10476)'s rating went from 1876 to 1836 at the 2018 Spooky Open held on 27 Oct 2018 - 28 Oct 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.