This page explains how Sabrina Zhu (USATT# 91046)'s rating went from 1866 to 1867 at the Knoxville Secret City Open Gold Dollar Upset Tourn held on - 12 Sep 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.