This page explains how Leon S. Penell (USATT# 14437)'s rating went from 1246 to 1285 at the Harlingen Spring RR Open TTT held on - 7 Mar 1999. 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.