This page explains how Emiko Hosoya (USATT# 223357)'s rating went from 978 to 1069 at the AZ PTTC Monday event from 13 Jan 2020. 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.