This page explains how Yuwen Li (USATT# 220183)'s rating went from 1930 to 1889 at the PPC 2024 Spring Open held on 30 Mar 2024 - 31 Mar 2024. 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.