Tiebreak Systems Used by Tornelo

David Cordover

Last Update há 8 meses

The default Tiebreak can be set in the Division Settings - Countback.

Tiebreak changes will only apply to results in the Pairing Program, players in a Tournament Lobby will only see the default countback which is Buchholz.

Individual Events

Buchholz


Players are rewarded with a better tiebreak by playing harder opponents.


Calculation method is SUM of Opponent's scores


Players who receive a BYE get 0 points towards their Buchholz score


Eg. MyPlayer Pairing Card looks like this:


Round 1 oppenent Tom Thumb, scored 2 points


Round 2 oppenent Hagrid Horrible, scored 2.5 points


Round 3 oppenent James Yi-Wei, scored 1 point


Round 4 oppenent BYE


MyPlayer Buchholz score would be 2 + 2.5 + 1 + 0 = 5.5

Progressive


Players are rewarded with a better tiebreak by performing well in the early rounds.


Calculation method is SUM of Player scores after each round


Eg. MyPlayer results were: win, loss, win, draw


MyPlayer progressive scores are 1, 1, 2, 2.5 and their progressive tie-break score is 6.5

Sonneborn-Berger


Players are rewarded with a better tiebreak by defeating higher scoring players.


Calculation method is the SUM of Defeated Opponents' Scores


plus the SUM of Half of Drawn Opponents' Scores


Losses and BYE's do not impact this tie-break calculation.


Eg. MyPlayer Pairing Card looks like this:


Round 1 win against oppenent Tom Thumb, scored 2 points


Round 2 draw against oppenent Hagrid Horrible, scored 2.5 points


Round 3 loss against oppenent James Yi-Wei, scored 1 point


Round 4 oppenent BYE


MyPlayer Sonneborn-Berger score would be 2 + 1.25 + 0 + 0 = 3.25

The player rankings will be displayed based on the following:


  • Default Tiebreak (arbiters can choose between the above 3 options)
  • Rating (high-to-low)
  • Undefined

Nevertheless, the information about the remaining tiebreaks is still stored in Tornelo and can be displayed in the Standings. The Arbiter can use it to make the final decision about the player rankings.


In this example the higher rated player also has a higher Progress and Sonneborn-Berger, the Arbiter can then approve that Obi-Wan Kenobi rightfully gets the bronze medal. 



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