This page explains how Jonnathan Luciano (USATT# 1172667)'s rating went from 1893 to 1871 at the 2022 AITTA Winter Open held on 19 Feb 2022 - 20 Feb 2022. 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.