This page explains how Fielder Strain (USATT# 86165)'s rating went from 1341 to 1291 at the St. Louis Open held on - 4 May 2014. 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.