MGA GoTD is a free open source program for running small to medium sized
(16-80 players). It handles registration, pairing, and reporting results. GoTD has a
simple easy to use interface. It runs on Windows, Linux, and Mac. Currently used by
the Massachusetts Go Association
Running the Program
This program requires the Java Runtime available from
http://www.javasoft.com. Once the Java
Runtime has been installed you can run GoTD as a Java WebStart program. Just click
You can also download it and run it as a standalone program on the
SourceForge summary page.
Running this program outside of JNLP gives you the additional options to
specify the number of rounds in your tournament and the value for komi.
See It In Action
Want to see the GoTD program in action? Watch the screen cast.
What is it?
The tournament director is a program written to run the quarterly handicap tournament
of the Massachusetts Go Association. The program can be used to run any Go tournament.
The program will handle player pairing, tournament ranking, and separate player bands.
It saves in the AGA
tournament reporting format.
The bands dialog makes it easy to create an upper and lower band for larger tournaments.
The results dialogs makes it easy to see who won the tournament. The bottom five players
makes it easier to determine a player to pass a specific round.
A Real World Example
GoTD is used to run all tournaments at the Massachusetts Go Association. They maintain
a page describing their tournament procedures
is an excellent resource for anyone running their own Go tournaments with or without GoTD.
The Pairing Algorithm
GoTD pairs players with two goals. First is to make sure there is a clear winner at the
end of the tournament. To achieve this the program pairs winners with winners and losers
with losers. As the tournament progresses this will result in an increasingly smaller set
of players who have won all of their games. At the end of the tournament only one or two
players will have won all of their games and they are the winner.
The second goal is to minimize the number of handicap stones. In each round the software
will try to pair the players with the closest ranks. Tournaments are more enjoyable for
everyone if a 15 kyu plays a 14 kyu instead of a 5 dan.
Determining a Winner
At the end of the tournament there will be a small number of players who have won every game.
If there is only on player like this then they are the winner. However, most often there
will be more than one player with a perfect record. In that case the winner is determined
by the sum of opponents scores. Each player with a perfect record is given one point for each
game their opponents won. The player with the most points wins.
Read the Documentation
Read the documentation (work in progress) for the project
Give Us Feedback
Feedback on this project is always welcome. Please send any bugs, questions, or just
general feedback through the SourceForge project page at
. If you are using the program and
like it, or would like to contribute code please let me know.
This software is released under the Apache license Version 2.0.
That means this software is open source. Anyone can see the source code for this
program. It also means that this program is free as in beer. You can use it and
redistribute it totally for free.
This pages and any images within are released under the
Creative Commons Attribution-ShareAlike 3.0 license unless otherwise noted. You
may alter, transform, build upon, or distribute the material as long as it is properly
attributed and released under the same or a similarly compatible license. See the
license for more information.