This page explains how David T Campbell (USATT# 59573)'s rating went from 1217 to 1218 at the HCTT Circuit 2015 November held on - 7 Nov 2015. 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.