This page explains how Naomi Yamada (USATT# 1132250)'s rating went from 1176 to 1174 at the Penn State Table Tennis Club event from 17 Oct 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.