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SwissSys UsageUser GuideRegistrationDownloading USCF Database

Downloading USCF Database

Download the USCF database to get instant access to ratings and membership information for ~450,000 US Chess players.

Recommended Format: The new binary format (.rbin.gz) provides the fastest performance. The Database Wizard downloads this automatically. All previous USCF database formats remain fully supported.

Downloading USCF Database

Use the Database Wizard for automatic download and setup.

Open Database Wizard

Go to Database > Database wizard…

Select USCF

Click the USCF button.

Choose to Download

When prompted “Do you want to download the latest database?”, click Yes.

Select Supplement Date

Choose which rating supplement to download:

  • Latest - Most recent supplement (recommended)
  • Specific date - Select a month/year (e.g., “12/2024”)

Supplement Dates: USCF publishes monthly supplements. Choose the supplement that matches your tournament requirements.

Choose Install Location

Select where to save the database. Default location:

C:\Users\[YourName]\Documents\SwissSys 11\Databases\

Download and Install

Click Download and install. The wizard will:

  • Download the database (~15-20 MB)
  • Save it to your location
  • Configure SwissSys automatically

Download progress

Wait for Completion

When finished, you’ll see: “Your database is ready to use.”

Your USCF database is configured and ready for player registration!

Loading an Existing Database File

If you already have a USCF database file (.rbin.gz), load it with the wizard.

Open Database Wizard

Go to Database > Database wizard…

Select USCF

Click the USCF button.

Decline Download

Click No when asked to download.

Browse to File

Browse to your database file and select it.

The wizard automatically detects the format and applies settings.

Backwards Compatibility: All legacy formats (.dbf, .txt, .tsv) remain fully supported. Any database file that worked before will continue to work. See Legacy Database Formats for details.

Troubleshooting

Download Fails

Download failed or timed out.

Solutions:

  1. Check your internet connection
  2. Ensure firewall allows SwissSys internet access
  3. Wait a few minutes and try again
  4. Contact support if problem persists

Database Won’t Load

Failed to load USCF database. File may be corrupted.

Solutions:

  1. Delete the existing database file
  2. Download a fresh copy using the wizard
  3. Ensure stable connection during download

See Also

Last updated on
Database WizardDownloading CFC Database
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