This page explains how Jack Allen (USATT# 70484)'s rating went from 2025 to 1987 at the 2017 Arnold Table Tennis Challenge held on 3 Mar 2017 - 5 Mar 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.