This page explains how Itziar A A Rios (USATT# 211821)'s rating went from 1944 to 1954 at the 2019 Triangle Winter Two-Person Teams Tournament held on 26 Jan 2019 - 27 Jan 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.