This page explains how Sam Hsieh (USATT# 124821)'s rating went from 2069 to 2055 at the TTA Adv League - SUNDAY event from 16 Apr 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.