This page explains how Irving Adams (USATT# 30606)'s rating went from 1972 to 1965 at the NJTTC Thursday Adv League event from 29 Jul 2021. 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.