This page explains how Paul M. Hadley (USATT# 23497)'s rating went from 1550 to 1550 at the NJTTC Monday League event from 3 Dec 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.