This page explains how Lei Ren (USATT# 90647)'s rating went from n/a to 1919 at the HITTA Friday Night League event from 26 Aug 2016. 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.