This page explains how Mark B Kraut (USATT# 7414)'s rating went from 1900 to 1889 at the 2023 Phoenix Open held on 29 Apr 2023 - 30 Apr 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.