This page explains how Spencer Abadie (USATT# 70013)'s rating went from 1740 to 1731 at the Lousiana Open held on - 18 Sep 2011. 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.