This page explains how Wenfang Lei (USATT# 198069)'s rating went from 1920 to 1917 at the ASLT League event from 12 May 2023. 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.