This page explains how Jayden Zhou (USATT# 88299)'s rating went from 1901 to 1814 at the LYTTC Friday Pro League event from 17 Apr 2015. 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.