This page explains how Paul M. Hadley (USATT# 23497)'s rating went from 1511 to 1502 at the NJTTC Monday League event from 24 Jun 2019. 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.