This page explains how Mark Malench (USATT# 64047)'s rating went from 1690 to 1673 at the SJISC Weekly League nights event from 30 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.