This page explains how Ed Watkins (USATT# 89661)'s rating went from 1218 to 1518 at the MVTTC 2015 Winter Classic held on - 10 Jan 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.