This page explains how Kent Tillinghast (USATT# 49738)'s rating went from 1481 to 1469 at the BTTC League event from 20 Dec 2022. 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.