This page explains how Jinpeng Xiao (USATT# 85228)'s rating went from 1672 to 1628 at the 2024 Butterfly Teams Tournament held on 27 Jan 2024 - 28 Jan 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.