This page explains how Nick Del Russo (USATT# 1171159)'s rating went from 1917 to 1904 at the Butterfly Florida OPEN held on 28 Jul 2022 - 31 Jul 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.