This page explains how Neil Grey (USATT# 6269)'s rating went from 933 to 933 at the Butterfly February 2018 BTTC Open held on 10 Feb 2018 - 11 Feb 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.