This page explains how Zaman Molla (USATT# 77031)'s rating went from 2578 to 2574 at the California State Open held on - 23 Jun 2013. 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.