This page explains how Gilbert Alcindor (USATT# 231468)'s rating went from 1043 to 1019 at the BTTC League event from 11 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.