This page explains how Otto H. Jespersen (USATT# 8979)'s rating went from 1464 to 1451 at the Boo's Bros. Roy's Open held on - 17 May 1997. The links below take you to pages that describe various aspects of the rating processor.

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.