This page explains how John James Alto (USATT# 30755)'s rating went from 1888 to 1913 at the The 2007 John Schneider Memori held on - 25 Mar 2007. 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.