This page explains how Krzysztof Perkowski (USATT# 224044)'s rating went from 1969 to 1976 at the Presper Financial Architects Open held on 16 Apr 2021 - 17 Apr 2021. 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.