This page explains how William Bai (USATT# 81300)'s rating went from 2486 to 2535 at the ICC Joola Spring Open 2021 held on 10 Apr 2021 - 11 Apr 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.