This page explains how Christopher Santiago (USATT# 10732)'s rating went from 2061 to 2058 at the SPTTC December Giant Round Robin held on - 5 Dec 2015. 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.