This page explains how Leonardo Ortega (USATT# 926413)'s rating went from 1148 to 1157 at the BTTC League event from 23 Jan 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.