This page explains how Vinicius Patrinhani (USATT# 222458)'s rating went from 481 to 471 at the AMDT event from 5 Feb 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.