This page explains how Kenai A Rios (USATT# 211820)'s rating went from 905 to 881 at the 2017 Aurora Cup held on 13 Jan 2017 - 15 Jan 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.