This page explains how Xiaozhen Li (USATT# 229379)'s rating went from 841 to 870 at the Spttc Saturday Night League event from 18 Nov 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.