This page explains how Nathan Lee (USATT# 92628)'s rating went from 2128 to 2102 at the California State Open 2017 held on 1 Dec 2017 - 3 Dec 2017. 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.