This page explains how David Helmick (USATT# 217764)'s rating went from 1893 to 1871 at the 2022 US National TT Championships Florida State Qualifier held on 25 Mar 2022 - 27 Mar 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.