This page explains how Leo Xu (USATT# 271150)'s rating went from 121 to 121 at the 2022 FREMONT BUTTERFLY JUNE OPEN held on 17 Jun 2022 - 19 Jun 2022. 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.