This page explains how John Mc Dermott (USATT# 93518)'s rating went from 2244 to 2254 at the 2021 April Open @ Princeton Pong held on 10 Apr 2021 - 11 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.