This page explains how Karson Jiang (USATT# 217972)'s rating went from 1899 to 1911 at the Matchpoint TTC Friday League event from 16 Jul 2021. 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.