High School on SI's ratings algorithm is built around the above equation, but deviates from Colley in that it also incorporates margin of victory. Our system applies additional adjustments to ...

The ratings used to determine playoff qualifiers were developed in 1970 by Jack Harbin, who at the time was a cash register repairman and volunteer coach at Wickliffe High School.

Now at No. 930, Westwood is now back ahead of his son, Sam, a mini-tour player who currently sits 2,759th. That served as Exhibit 1 for the Englishman's rant against the world rankings system.