This page explains how Wynn Chilson (USATT# 26798)'s rating went from 1949 to 1980 at the LYTTC Friday Pro League event from 8 Mar 2024. 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.