This page explains how Zhanjian Luo (USATT# 22970)'s rating went from n/a to 1931 at the Boston TTC event from 3 Mar 2020. 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.