This page explains how Sofia Xerri (USATT# 222614)'s rating went from 1117 to 1117 at the BTTC League event from 24 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.