This page explains how Stan Smith (USATT# 19864)'s rating went from 1240 to 1200 at the 2019 Luke White Memorial Winter Singles League event from 10 Feb 2020. 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.