This page explains how Ivan D Sonido (USATT# 93945)'s rating went from 1560 to 1565 at the Homenetmen Ararat Open held on 19 May 2018 - 19 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.