SOR

    Keywords: Tournament

SOR stands for Sum of Ranks. It is a hypothetical tie breaker. In a tournament where you play 5d (5 dan) 4d and 3d your SOR is 12. If kyu ranks appear it gets slightly more complicated :) Try using 7k as -6 and 1k as 0.

SOR can also stand for Sum Of Ratings where one performs the same calculation as above but uses ratings

Motivation

This tiebreaker is trying to assess who had the toughest opponents in obtaining their score. Using ranks makes the calculation easier, but would be prone to sandbaggers and over-ranked players. Using ratings makes the calculation harder and to a degree must be considered to potentially have the same problems.

Tapir: Before using the opponents ranks / ratings as a tie breaker, it should be considered to use the ranks / ratings of the tied players themselves for breaking ties. More on that: Previous performance


This is a copy of the living page "SOR" at Sensei's Library.
(OC) 2014 the Authors, published under the OpenContent License V1.0.
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