This page explains how Dalton Banh (USATT# 77885)'s rating went from 1625 to 1620 at the LATTF event from 13 Apr 2012. 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.