This page explains how Craig Mecklenburg (USATT# 75129)'s rating went from 1261 to 1263 at the KTTC League event from 20 Nov 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.