This page explains how Chi Kin Chan (USATT# 55576)'s rating went from 2020 to 2015 at the Florida State Closed held on - 14 Nov 2015. 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.