This page explains how Yongbo Tan (USATT# 229395)'s rating went from 1644 to 1494 at the Fremont Table Tennis Academy League event from 14 Oct 2018. 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.