This page explains how Michael Chen (USATT# 22140)'s rating went from 1873 to 1778 at the Orlando's Annual Winter Open 2015 held on - 14 Mar 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.