This page explains how Hector Laureano (USATT# 216488)'s rating went from 1891 to 1857 at the SATTA League event from 12 Jul 2019. 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.