This page explains how Bret Bohlman (USATT# 217233)'s rating went from 1643 to 1630 at the SpinBlock Monday Night League event from 29 Apr 2019. 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.