This page explains how Ansel Yan (USATT# 1178710)'s rating went from 63 to 57 at the PTTC Saturday League event from 16 Mar 2024. 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.