This page explains how Lisa Mac (USATT# 274866)'s rating went from 134 to 223 at the TTA Beg/Inter League - SATURDAY event from 10 Sep 2022. 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.