This page explains how John Mark Wetzler (USATT# 11058)'s rating went from 2129 to 2079 at the 20th Anniversary Giant Round Robin held on 27 Aug 2022 - 27 Aug 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.