This page explains how Rene Arellano (USATT# 1166841)'s rating went from 199 to 221 at the AMDT event from 29 Jan 2020. 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.