This page explains how Richard B Larrumbide (USATT# 1165461)'s rating went from 1437 to 1407 at the 2024 STL Spring Break Championships held on 16 Mar 2024 - 17 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.