This page explains how Zhiyuan Dong (USATT# 265888)'s rating went from n/a to 1887 at the SJISC Weekly League nights event from 20 Sep 2022. 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.