This page explains how Danny Qun Zhang (USATT# 220501)'s rating went from 1849 to 1850 at the NJTTC Monday League event from 27 Feb 2023. 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.