This page explains how Hunter Tsai (USATT# 276152)'s rating went from 674 to 665 at the Matchpoint TTC Friday League event from 20 Jan 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.