This page explains how Leonardo Ortega (USATT# 926413)'s rating went from 1277 to 1265 at the BTTC League event from 1 May 2018. 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.