This page explains how Sean Ling (USATT# 199400)'s rating went from 1924 to 1872 at the TTA Adv League - SUNDAY event from 12 Dec 2021. 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.