This page explains how Rodney Calsena Jacolo (USATT# 270278)'s rating went from n/a to 405 at the ICC - Sunday Beginners League event from 18 Apr 2021. 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.