This page explains how Luke Wong (USATT# 219958)'s rating went from 1278 to 1213 at the Boston TTC Div.B event from 23 Jul 2018. 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.