Sean Koster
USATT#: 212045
1768 1767
TT&M Friday Night Butterfly League
20 Jan 2023
20 Jan 2023
This page explains how Sean Koster (USATT# 212045)'s rating went from 1768 to 1767 at the TT&M Friday Night Butterfly League event from 20 Jan 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.