This page explains how Hong Qin (USATT# 202009)'s rating went from n/a to 1178 at the Vegas Valley Over-40 Open held on 31 Mar 2016 - 3 Apr 2016. 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.