This page explains how Qing Chai (USATT# 196751)'s rating went from 1856 to 1871 at the 888 League event from 6 Aug 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.