This page explains how Doug Wallace (USATT# 220019)'s rating went from 1523 to 1512 at the 2023 April Open @ Princeton Pong held on 1 Apr 2023 - 2 Apr 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.