NEW: Starting with the May 2023 database, the database file name has changed slightly to "uscffide.dbf". Make sure to update the path in SwissSys. It was "uscf-fide.dbf". This is for compatibility with SwissSys version 11.

Reason: Apparently the database engine that SwissSys version 11 uses has trouble with long filenames. With the original name, you might encounter an error that the file is not a valid database. This is untrue. The problem is that it can't handle the long filename. The file name was shortened to accomodate this.

The combined database file is a dbase file that includes all six US Chess ratings and all three FIDE ratings for all active US Chess players. Inactive player IDs (duplicate, deceased, etc.) have been excluded from this database for brevity. This file is compatible with SwissSys (version 9, 10, or 11). For instructions on how to set up SwissSys scroll down to the bottom of this page. Only the last 6 months are displayed, while databases are available back to April 2021. Use the contact form to request an older month than those displayed.

Latest Combined Database

March 2024

Combined Databases For Last 6 Months

March 2024

February 2024

January 2024

December 2023

November 2023

October 2023

SwissSys setup instructions (first time only):

  1. Download the SwissSys version 10 or version 11 configuration file
  2. Download one of the database files from above
  3. Store the database file in a suitable location. For example: C:\users\[username]\Documents\SwissSys 10\Databases
  4. Open SwissSys
  5. Select "Database Setup" from the "Database" menu
  6. Click the "Load Settings" button
  7. Find and select the SwissSys configuration file you downloaded in Step 1
  8. Change the "Database File" path to the path and location of your saved database file.
  9. Click on "OK" to apply the new database

Now that the database has been set up, for each ongoing month you only need to download the new database and replace the original file with the new one. Then from the "Database" menu in SwissSys choose "Index Database".