This page explains how Matthias Stender (USATT# 91336)'s rating went from 1890 to 1881 at the 2015 Arizona Sizzler held on - 26 Jul 2015. 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.