William Chan
USATT#: 77422
| Coach Level: Club
1649 1598
2023 USATT Massachusetts State Championships
7 May 2023 - 7 May 2023
7 May 2023 - 7 May 2023
This page explains how William Chan (USATT# 77422)'s rating went from 1649 to 1598 at the 2023 USATT Massachusetts State Championships held on 7 May 2023 - 7 May 2023. The links below take you to pages that describe various aspects of the rating processor.
Introduction
Initial Rating
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.