This page explains how Johnny Mariachi (USATT# 14694)'s rating went from 1121 to 1313 at the Harlingen Spring Open RR held on - 7 Mar 1998. 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.