Sean Koster
USATT#: 212045
1677 1621
TT&M Friday Night Butterfly League
3 May 2019
3 May 2019
This page explains how Sean Koster (USATT# 212045)'s rating went from 1677 to 1621 at the TT&M Friday Night Butterfly League event from 3 May 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.