This page explains how Jerome Montilla (USATT# 224105)'s rating went from 1859 to 1831 at the HITTA Weekly League event from 1 Aug 2021. 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.