This page explains how ILIYAN ARABOV (USATT# 82489)'s rating went from 1866 to 2069 at the 2015 BIC Spotlight on China Open held on - 31 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.