Sonneborn-Berger tie-break score in Round Robin
Currently the Round Robin tournaments use the Median-Buchholz scoring system to break ties.
But in a round robin tournament players with the same score will also have the same tie-break score, when all matches has been played. If players are tied by score and tie-break score, they are sorted based on their records relative to one another. And finally seed breaks up any remaining ties, which is in my opinion the most 'unfair' breaking of ties.
Anyway, the Buchholz score is not the best scoring system for round robin tournaments.
Instead, the Sonneborn-Berger tie-break score could be used for round robin tournaments. Can this be implemented?
Alternatively, a customizable score table would also be fine: https://challonge.uservoice.com/forums/44455-feature-requests/suggestions/3735804-customizable-score-table-in-round-robin