This page explains how Alon Danai (USATT# 230163)'s rating went from 598 to 621 at the LYTTC Friday Pro League event from 7 Dec 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.