This page explains how Ella Zhou (USATT# 270725)'s rating went from 1216 to 1171 at the TTA Adv League - SUNDAY event from 19 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.