This page explains how Yun Peng (USATT# 76263)'s rating went from 1953 to 1930 at the SVTTC Sunday U2000 event from 15 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.