This page explains how John Mark Wetzler (USATT# 11058)'s rating went from 2123 to 2119 at the LYTTC Giant RR - November Open held on 14 Nov 2020 - 15 Nov 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.