Christopher B. Lehman
USATT#: 7680
| Coach Level: Regional | International Referee | International Umpire
1969 2068
Topspin Open League
22 Nov 2011
22 Nov 2011
This page explains how Christopher B. Lehman (USATT# 7680)'s rating went from 1969 to 2068 at the Topspin Open League event from 22 Nov 2011. 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.