This page explains how Joe Halligan (USATT# 277364)'s rating went from 105 to 89 at the TTA Beg/Inter League - SATURDAY event from 25 Mar 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.