This page explains how Arkaprabho Ghosh (USATT# 85039)'s rating went from 1529 to 1490 at the Swan Sunday League event from 10 Sep 2017. 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.