This page explains how Kas Sivaguru (USATT# 230109)'s rating went from 1854 to 1858 at the Boston TTC event from 6 Oct 2023. 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.