Rating Calculation with ELOStat

You can use the fantastic program ELOStat by Dr. Frank Schubert within Arena. Rating calculation is now a very easy job for everybody. Click Extras arrow Rating Calculation with ELOStat.

ELOStat needs only three parameters:

  • The PGN file from which the ratings are calculated from
  • The start ELO number
  • The minimum number of games

You can set these parameters now comfortably in Arena's graphical dialog elements. If you' ve done so, you only have to click "Run ELOStat", and Arena starts the ELOStat program with these parameters. You can see what's happening on the "ELOStat workspace" tab in this dialog.

ELOStat generates 4 files: Rating.dat, programs.dat, general.dat, cluster.dat. These files are shown in four separate tabs in this dialogue. Caution: ELOStat overwrites the four files every time you run it.

  • The file rating.dat contains the ratings of all programs (or people!) in a normal table.
  • The file programs.dat shows individual statistics of the players in the PGN file.
  • The file general.dat gives you general statistics on white/black performance and openings
  • used.
  • The file cluster.dat holds a summary of the detected clusters of engines that played each
  • other and perhaps did not play engines of other clusters.

If you want to copy your 4 ELOStat output files and the PGN file to a safe location (because ELOStat overwrites its output files every time it is started), you can press the "Copy files to..." button. In the following dialog you can select or create a destination directory to copy the files to. If files with the same name exist there, they will be overwritten.

If it doesn' t work:

The ELOStat. exe file has to be located in the directory "ELOStat" below the Arena directory, e.g. for a correct path: C:\Arena\ELOStat\ELOStat. exe.

ELOStat versions prior to version 1.2 do not work. You can download the latest version of ELOStat on the Arena website .

Thank you, Frank Schubert!