This page explains how Matthew Tam (USATT# 1167055)'s rating went from 1232 to 1231 at the 2024 Butterfly Chinese New Year Tournament held on 18 Feb 2024 - 18 Feb 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.