This page explains how Miguel Ballesteros (USATT# 219731)'s rating went from 930 to 979 at the Westchester 2018 February Open held on 24 Feb 2018 - 25 Feb 2018. 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.