This page explains how Joy Lai (USATT# 1169988)'s rating went from n/a to 1188 at the LYTTC Friday Pro League event from 1 Oct 2021. 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.