This page explains how Umar Iqbal (USATT# 222486)'s rating went from 887 to 863 at the Fremont Table Tennis Academy League event from 14 Apr 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.