This page explains how Terry Timmins (USATT# 42815)'s rating went from 1387 to 1380 at the MeikleJohn National Seniors held on - 3 Jul 1995. 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.