This page explains how Lidney Mazzeo Castro (USATT# 216598)'s rating went from 2492 to 2488 at the Winter Challenge 2 Star Open held on 11 Mar 2017 - 11 Mar 2017. 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.