This page explains how Takeo Nakamura (USATT# 81090)'s rating went from 1523 to 1495 at the US Open held on - 6 Jul 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.