This page explains how Pui Chak (Jojo) Tam (USATT# 275300)'s rating went from 92 to 99 at the Swan Sunday League event from 7 May 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.