Sean Koster
USATT#: 212045
1580 1690
TT&M Friday Night Butterfly League
20 Sep 2019
20 Sep 2019
This page explains how Sean Koster (USATT# 212045)'s rating went from 1580 to 1690 at the TT&M Friday Night Butterfly League event from 20 Sep 2019. 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.