This page explains how David T Campbell (USATT# 59573)'s rating went from 1454 to 1437 at the HCTT Tuesday Night League event from 28 Feb 2017. 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.