This page explains how Kevin Mao (USATT# 271070)'s rating went from 1214 to 1190 at the HITTA Weekly League event from 24 Jun 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.