This page explains how Royce Zuniga (USATT# 86194)'s rating went from 1493 to 1490 at the 2018 Butterfly Cary Cup Open held on 29 Mar 2018 - 1 Apr 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.