This page explains how Nevin Dsouza (USATT# 268332)'s rating went from 221 to 213 at the AZ PTTC Monday event from 3 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.