Sean Koster
USATT#: 212045
1519 1554
TT&M Friday Night Butterfly League
21 Apr 2017
21 Apr 2017
This page explains how Sean Koster (USATT# 212045)'s rating went from 1519 to 1554 at the TT&M Friday Night Butterfly League event from 21 Apr 2017. 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.