This page explains how Kenneth K. Quarshie (USATT# 69866)'s rating went from 1442 to 1380 at the Matchpoint TTC Super League event from 26 Feb 2020. 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.