This page explains how Allan Anzagira (USATT# 218469)'s rating went from 1627 to 1626 at the NNTTC event from 10 Apr 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.