This page explains how Sumin Lee (USATT# 91475)'s rating went from 1660 to 1650 at the 22nd Fit Open held on - 22 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.