This page explains how Eric R Iosup (USATT# 93553)'s rating went from n/a to 270 at the Vernon Hills Spring Open held on - 26 Apr 2014. 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.