Jonathan L Kerfoot
USATT#: 7234
1222 1237
Butterfly Open on the North Am
- 30 Apr 2000
- 30 Apr 2000
This page explains how Jonathan L Kerfoot (USATT# 7234)'s rating went from 1222 to 1237 at the Butterfly Open on the North Am held on - 30 Apr 2000. 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.