This page explains how Ken Dewhirst (USATT# 52400)'s rating went from 1339 to 1340 at the Pacific Coast Open held on - 25 Aug 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.