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Thread - Swiss Tournaments

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#1 - 13 Dec 2007

Posted By:
Stoney X


Swiss Tournaments

I'll be adding swiss tournaments to the system sometime in the new year. One of the more interest challenges with this type of tournament is how to perform a tie-break if two or more players end the tournament with the same number of points. I've done some reseach of my own, and I would be more than happy if you could give your opinions. If you have played swiss tournaments before, please let me know what you think works best.

Regards
#2 - 14 Dec 2007

Posted By:
Chunga


Swiss

Here I will have to admit to, and plead, utter ignorance. I know that all my enlightened friends in chessland will forgive me, but what, exactly, is a Swiss tournament?
#3 - 14 Dec 2007

Posted By:
Stoney X


I'll give my interpretation of how a Swiss tournament works.

In the first round players are paired off either be rating or at random. You then play either 1 or 2 games depending on the tournament settings. All players proceed to the next round and are paired off again depending on how they faired in the previous round, so winners play winners, losers play losers. This continues for a certain number of rounds, i.e. if there are 8 players then 4 rounds, 16 player 8 rounds, etc. In each round, if you win your game/s you receive 2 points, a draw 1 point and 0 for a loss. The pairing off process will prevent players playing each other more than twice. After the final round the person at the top of the points table wins the tournament.

Regards
#4 - 14 Dec 2007

Posted By:
Chunga


swiss

Thanks Stoney.
#5 - 21 Dec 2007

Posted By:
redketchuplover


If two or more tie for a spot then I believe their head to head results decide the winner.
#5 - 21 Dec 2007

Posted By:
redketchuplover


If two or more tie for a spot then I believe their head to head results decide the winner.  If still not decisive then results vs. common opponents.  

[Edited : 21 Dec 2007]
#6 - 6 Jan 2008

Posted By:
woodpusher


Swiss System

Swiss System rules are outlined in detail by most National Chess federations, either in their rule books, or more commonly in their pamphlets to tournament directors.  Most of the tie breaks don't often come into play, but you have to know them.

The hassle a TD most often faces is not regarding the winner, but regarding pairings.  There are a number of priorities and complicated formulas for meeting them after the first round, which is pretty simple.  Highest and lowest rated are paired, with highest getting black, and 2nd highest white.  Subsequent rounds pair players with equal results, attempting to balance each player's colors during the entire event.  Some of the pairing decisions are formulaic, and others are simply left to the judgement of the TD.   Another problem with Swiss System is that the odd player at the end of pairings gets a Bye, usually a half point.  There are several good TD software programs which take care of pairings eliminating the chance that a TD may be accused of favoring his mates.

Stoney X, it might be possible for you to license the source code for one of these programs and add it to the site, so that a Swiss would manage itself.  The program I've uses also does Quads, double round robins, and other tournament types.

redketchuplover is right on about the tie breaks.  There may be one or two more, but in the end there can always be co-champions.

One other thing on tournaments in general.  It might eliminate some of the timeouts if a minimum number of regular completed games were required to enter a tournament.
#7 - 22 May 2008

Posted By:
bj


Swiss Tournament

Hi.Mr Stoney X.I'm just new guy here.I just want ask if there is any swiss tournament for me both rated and open tournament.I want to play to in the tournament.by the way regards to all players.Enjoy playing.Thanks
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