This page explains how Vincent Kam (USATT# 74247)'s rating went from 2010 to 1980 at the NJTTC Thursday Adv League event from 18 Apr 2019. 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.