This page explains how John Porter (USATT# 27268)'s rating went from 1763 to 1777 at the FL Orange Blossom Series-Spring Classic 2010 held on - 15 May 2010. 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.