This page explains how Wataru Hashimoto (USATT# 88650)'s rating went from 1310 to 1302 at the Spring Open held on - 4 May 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.