This page explains how Timothy A. Woollard (USATT# 16795)'s rating went from 1630 to 1609 at the 2015 February Super Round Robin held on - 7 Feb 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.