This page explains how Dave Fulcomer (USATT# 5937)'s rating went from 1580 to 1585 at the SJISC Butterfly Feb Open Tournament held on 26 Feb 2022 - 26 Feb 2022. 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.