This page explains how Ryan Chen (USATT# 220128)'s rating went from 1028 to 1017 at the 2022 Fremont TTA Butterfly October Open held on 28 Oct 2022 - 30 Oct 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.