This page explains how Arkaprabho Ghosh (USATT# 85039)'s rating went from 1450 to 1340 at the Swan Sunday League event from 5 Mar 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.