This page explains how Abhinav Gunda (USATT# 89194)'s rating went from 19 to 13 at the ICC California State Open held on - 9 Dec 2012. 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.