This page explains how Phong Nguyen (USATT# 78160)'s rating went from 2174 to 2149 at the San Diego Paddle Palace Open held on 27 May 2023 - 28 May 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.