This page explains how CARL R. LEWIS (USATT# 7736)'s rating went from 1656 to 1649 at the 2013 Decatur Open held on - 17 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.