This page explains how Ilya Bushkanets (USATT# 65222)'s rating went from 1612 to 1599 at the 2015 Butterfly Atlanta May Open held on - 9 May 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.