Sean Koster
USATT#: 212045
1585 1572
TT&M Friday Night Butterfly League
20 Apr 2018
20 Apr 2018
This page explains how Sean Koster (USATT# 212045)'s rating went from 1585 to 1572 at the TT&M Friday Night Butterfly League event from 20 Apr 2018. 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.