This page explains how Roger Olson (USATT# 78381)'s rating went from 739 to 730 at the San Diego Open II 10K Tournament held on 28 May 2016 - 29 May 2016. 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.