Round Robin Tournament Scheduling

How do you determine a winner?

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mayer(Guest)

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on: August 27, 2013, 03:54:46 PM
In a whist tournament for tennis doubles, you've laid out the scheduling beautifully. What criteria do you suggest for determining a winner? Obviously there are matches won and games won, but what criteria would one use to break ties? Head to head doesn't seem like it would work since you play everyone twice and could split.


Richard A. DeVenezias

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Reply #1 on: August 29, 2013, 08:00:07 AM
Hi Mayer:

In table tennis the following match-point method is used for determining a round robins winner.

Every match is the best 3 games out of 5 and must have a winner and loser, no ties at the match level.
Match points:
2 points - winner
1 point - loser
0 point - loser through defaulting (one person is a no show)
0 points - unplayed match (both people are a no show)

Add all the match points up for each player.

If two players A and B have the same match-points there is a two-way tie and the winner of the tie is who ever won the A vs B match.

If more than two players have the same match-points then the games-ratio [(games won) / (games lost)] for each player in the tie is calculated, but only from the matches of the players in the tie !  The player with the highest games-ratio is the winner.

A tie at the games-ratio level is resolved in a similar fashion;

If two players A and B have the same games-ratio there is a two-way tie and the winner of the tie is who ever won the A vs B match.

If more than two players have the same games-ratio then the points-ratio [(points won) / (points lost)] for each player in the tie is calculated, but only from the matches of the players in the tie.  The player with the highest points-ratio is the winner.

A tie at the points-ratio level is resolved by a drawing of straws, or other tie-less random selection such as the most correct guesses in independent chains of coin flips.
« Last Edit: August 29, 2013, 08:03:18 AM by admin »
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