This page explains how Bowie G. Martin Sr. (USATT# 4123)'s rating went from 1478 to 1448 at the 2017 Triangle May "Upside Down" Open Tournament held on 20 May 2017 - 21 May 2017. 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.